RELIAS DYSRHYTHMIA BASIC TESTBANK ANSWERS 2024/2025 DYSRHYTHMIA – BASIC A&B (A+ GRADED) 10 | Exams Nursing | Docsity (2024)

Download RELIAS DYSRHYTHMIA BASIC TESTBANK ANSWERS 2024/2025 DYSRHYTHMIA – BASIC A&B (A+ GRADED) 10 and more Exams Nursing in PDF only on Docsity! pg. 1 1 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) pg. 2 2 - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm pg. 5 5 Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR pg. 6 6 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) pg. 7 7 Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually pg. 10 10 Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular pg. 11 11 - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. pg. 12 12 normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles pg. 15 15 Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria pg. 16 16 Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds pg. 17 17 Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR pg. 20 20 Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans pg. 21 21 failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs pg. 22 22 Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only pg. 25 25 Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) pg. 26 26 - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) pg. 27 27 Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria pg. 30 30 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) pg. 31 31 Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node pg. 32 32 Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans pg. 35 35 Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. pg. 36 36 normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles pg. 37 37 Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) pg. 40 40 Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds pg. 41 41 Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR pg. 42 42 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) pg. 45 45 failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs pg. 46 46 Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only pg. 47 47 Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. pg. 50 50 - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) pg. 51 51 Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria pg. 52 52 Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds pg. 55 55 Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node pg. 56 56 Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block. 2nd Degree Heart Block (Mobitz II) - ansRare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant 2nd degree heart block type 1 (Wenkebach) - ansProgressively longer PR interval until the P wave is not followed by a QPR 3rd degree heart block - ansno obvious correlation between p and qrs, need pace maker Accelerated Idioventricular Rhythm - ansRate: 50 - 100 usually (usually slow) P wave: Obscured by ventricular waves (occur during ventricular contraction) - SA node slower than faster ventricular pacing than should be QRS: Wide QRS Conduction: Ventricular only Rhythm: Regular - benign rhythm that is sometimes seen during acute MI or early after reperfusion. - Rarely sustained, does not progress to vfib, rarely requires treatment asystole - ansabsence of contractions of the heart Atrial Fibrillation (A-Fib) - ansan irregular and often very fast heart rate originating from abnormal conduction in the atria Atrial Flutter - ansirregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" Atrial paced rhythm - ansspike before P wave Bigeminy PVC - ansevery other beat is a PVC Failure to capture (pacemaker) - ans pg. 57 57 failure to sense (pacemaker) - ans First degree heart block - ansatrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a second before being conducted to the ventricles Idioventricular Rhythm - ans<40 *looks like vtach but slow* - no P waves (from vent foci) - Wide QRS (serious, death like rhythm) - called "dying heart" rhythm...occasional ventric beat b4 death (asystole) Junctional Rhythm - ans40-60 Regular! -impulse from AV node w/ retro/antegrade transmission - P wave often inverted/buried/follow QRS - slow rate - narrow QRS (not wide like ventricular) Junctional Tachycardia - ans>60 bpm (ms. K; 150-250) - KEY: will be regular (consistent) - AV junction produces a rapid sequence of QRS-T cycles - p-wave often inverted/buried/follow QRS monomorphic ventricular tachycardia - anspresents with wide QRS complexes of a common shape. normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs pg. 60 60 normal sinus rhythm - ansheart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 beats per minute Premature Atrial Contraction (PAC) - ansHeart Rate: Depends on underlying rhythm Regularity: Interrupts the regularity of underlying rhythm P-Wave: can be flattened, notched, or unusual. May be hidden within the T wave PRI: measures between .12-.20 seconds and can be prolonged; can be different from other complexes QRS: <.12 seconds Premature Junctional Contraction - ansInverted p wave or hidden p wave PRI<0.12 or none Normal QRS premature ventricular contraction (PVC) - ansa ventricular contraction preceding the normal impulse initiated by the SA node (pacemaker) PVC couplets - ansPVC occurring in pairs, no adequate C.O. when this occurs Sinus Arrest/Pause - ans- SA node doesn't fire - notice absence of P-wave for a complete cycle (a missed cycle) length of pause ≠ multiple of normal rate (block) Sinus Arrhythmia - ansAppearance is ALMOST NORMAL: Respiratory - Circulatory interaction Rate INCREASES with INSPIRATION (IN=IN) Sinus Bradycardia - ans<60 normal sinus rhythm Sinus Tachycardia - ans>100 (100-150) normal sinus rhythm Supraventricular Tachycardia (SVT) - ansan abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node Torsades de pointes - ansRate: 120 - 200 usually P wave: Obscured by ventricular waves QRS: Wide QRS - "Twisting of the Points" Conduction: Ventricular only Rhythm: Slightly irregular Ventricular fibrillation (V-fib) - ansabnormal heart rhythm which results in quivering of ventricles pg. 61 61 Ventricular paced rhythm - ansventricular contractions which occur in cases of complete heart block.