BASIC DYSRHYTHMIA – RELIAS EXAM QUESTIONS AND CORRECT ANSWERS
LATEST GUIDE 2025.
normal sinus heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60
rhythm to 100 beats per minute
1. Sinus Arrhythmia Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
2. Sinus Bradycar- <60
dia normal sinus rhythm
3. Sinus Tachycar- >100 (100-150)
dia normal sinus rhythm
4. Premature Atrial Heart Rate: Depends on underlying rhythm
Contraction (PAC) 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 ditterent
from other complexes
QRS: <.12 seconds
5. Sinus Ar- - SA node doesn't fire
rest/Pause - notice absence of P-wave for a complete cycle (a missed cycle)
length of pause `multiple of normal rate (block)
1/5
, BASIC DYSRHYTHMIA – RELIAS EXAM QUESTIONS AND CORRECT ANSWERS
LATEST GUIDE 2025.
6. Atrial Fibrillation an irregular and often very fast heart rate originating from abnormal conduction
(A-Fib) in the atria
7. Atrial Flutter irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to
1 block"
8. Junctional 40-60 Regular!
Rhythm -impulse from AV node w/ retro/antegrade transmission
- P wave often inverted/buried/follow QRS
- slow rate
- narrow QRS (not wide like ventricular)
9. Junctional Tachy- >60 bpm (ms. K; 150-250)
cardia - KEY: will be regular (consistent)
- AV junction produces a rapid sequence of QRS-T cycles
- p-wave often inverted/buried/follow QRS
10. Premature Junc- Inverted p wave or hidden p wave
tional Contrac- PRI<0.12 or none
tion Normal QRS
2/5
LATEST GUIDE 2025.
normal sinus heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60
rhythm to 100 beats per minute
1. Sinus Arrhythmia Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
2. Sinus Bradycar- <60
dia normal sinus rhythm
3. Sinus Tachycar- >100 (100-150)
dia normal sinus rhythm
4. Premature Atrial Heart Rate: Depends on underlying rhythm
Contraction (PAC) 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 ditterent
from other complexes
QRS: <.12 seconds
5. Sinus Ar- - SA node doesn't fire
rest/Pause - notice absence of P-wave for a complete cycle (a missed cycle)
length of pause `multiple of normal rate (block)
1/5
, BASIC DYSRHYTHMIA – RELIAS EXAM QUESTIONS AND CORRECT ANSWERS
LATEST GUIDE 2025.
6. Atrial Fibrillation an irregular and often very fast heart rate originating from abnormal conduction
(A-Fib) in the atria
7. Atrial Flutter irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to
1 block"
8. Junctional 40-60 Regular!
Rhythm -impulse from AV node w/ retro/antegrade transmission
- P wave often inverted/buried/follow QRS
- slow rate
- narrow QRS (not wide like ventricular)
9. Junctional Tachy- >60 bpm (ms. K; 150-250)
cardia - KEY: will be regular (consistent)
- AV junction produces a rapid sequence of QRS-T cycles
- p-wave often inverted/buried/follow QRS
10. Premature Junc- Inverted p wave or hidden p wave
tional Contrac- PRI<0.12 or none
tion Normal QRS
2/5
