DYSRHYTHMIA BASIC TEST C PRACTICE
REVIEW 2026 QUESTIONS AND ANSWERS
VERIFIED
◉ 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)
- KEY: will be regular (consistent)
- AV junction produces a rapid sequence of QRS-T cycles
- p-wave often inverted/buried/follow QRS
REVIEW 2026 QUESTIONS AND ANSWERS
VERIFIED
◉ 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)
- KEY: will be regular (consistent)
- AV junction produces a rapid sequence of QRS-T cycles
- p-wave often inverted/buried/follow QRS
