Basic Dysrhythmia-Relias
normal sinus rhythm - ANSWER-heart rhythm originating in the sinoatrial node with a rate in patients at
rest of 60 to 100 beats per minute
Sinus Arrhythmia - ANSWER-Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - ANSWER-<60
normal sinus rhythm
Sinus Tachycardia - ANSWER->100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - ANSWER-Heart 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
Sinus Arrest/Pause - ANSWER-- 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)
Atrial Fibrillation (A-Fib) - ANSWER-an irregular and often very fast heart rate originating from abnormal
conduction in the atria
Atrial Flutter - ANSWER-irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3
to 1 block"
Junctional Rhythm - ANSWER-40-60 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 - ANSWER->60 bpm (ms. K; 150-250)
normal sinus rhythm - ANSWER-heart rhythm originating in the sinoatrial node with a rate in patients at
rest of 60 to 100 beats per minute
Sinus Arrhythmia - ANSWER-Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - ANSWER-<60
normal sinus rhythm
Sinus Tachycardia - ANSWER->100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - ANSWER-Heart 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
Sinus Arrest/Pause - ANSWER-- 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)
Atrial Fibrillation (A-Fib) - ANSWER-an irregular and often very fast heart rate originating from abnormal
conduction in the atria
Atrial Flutter - ANSWER-irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3
to 1 block"
Junctional Rhythm - ANSWER-40-60 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 - ANSWER->60 bpm (ms. K; 150-250)
