Basic Dysrhythmia-Relias Question and
Answer Review 2024-25
normal sinus rhythm - correct answer heart rhythm
originating in the sinoatrial node with a rate in patients at
rest of 60 to 100 beats per minute
Sinus Arrhythmia - correct answer Appearance is
ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - correct answer <60
normal sinus rhythm
Sinus Tachycardia - correct answer >100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - correct 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
, Basic Dysrhythmia-Relias Question and
Answer Review 2024-25
QRS: <.12 seconds
Sinus Arrest/Pause - correct 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) - correct answer an irregular
and often very fast heart rate originating from abnormal
conduction in the atria
Atrial Flutter - correct answer irregular beating of the
atria; often described as "a-flutter with 2 to 1 block or 3
to 1 block"
Junctional Rhythm - correct 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)
Answer Review 2024-25
normal sinus rhythm - correct answer heart rhythm
originating in the sinoatrial node with a rate in patients at
rest of 60 to 100 beats per minute
Sinus Arrhythmia - correct answer Appearance is
ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - correct answer <60
normal sinus rhythm
Sinus Tachycardia - correct answer >100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - correct 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
, Basic Dysrhythmia-Relias Question and
Answer Review 2024-25
QRS: <.12 seconds
Sinus Arrest/Pause - correct 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) - correct answer an irregular
and often very fast heart rate originating from abnormal
conduction in the atria
Atrial Flutter - correct answer irregular beating of the
atria; often described as "a-flutter with 2 to 1 block or 3
to 1 block"
Junctional Rhythm - correct 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)
