Basic Dysrhythmia-Relias
Basic Dysrhythmia-Relias Exam
Containing Questions and Answers
2024-2025
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:
1
, Basic Dysrhythmia-Relias
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
2
Basic Dysrhythmia-Relias Exam
Containing Questions and Answers
2024-2025
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:
1
, Basic Dysrhythmia-Relias
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
2
