Basic Dysrhythmia-Relias Questions &
Answers
normal sinus rhythm - ANSWERSheart rhythm originating in the sinoatrial node with a
rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - ANSWERSAppearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - ANSWERS<60
normal sinus rhythm
Sinus Tachycardia - ANSWERS>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - ANSWERSHeart 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 - ANSWERS- 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) - ANSWERSan irregular and often very fast heart rate
originating from abnormal conduction in the atria
Atrial Flutter - ANSWERSirregular beating of the atria; often described as "a-flutter with
2 to 1 block or 3 to 1 block"
Junctional Rhythm - ANSWERS40-60 Regular!
Answers
normal sinus rhythm - ANSWERSheart rhythm originating in the sinoatrial node with a
rate in patients at rest of 60 to 100 beats per minute
Sinus Arrhythmia - ANSWERSAppearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia - ANSWERS<60
normal sinus rhythm
Sinus Tachycardia - ANSWERS>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC) - ANSWERSHeart 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 - ANSWERS- 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) - ANSWERSan irregular and often very fast heart rate
originating from abnormal conduction in the atria
Atrial Flutter - ANSWERSirregular beating of the atria; often described as "a-flutter with
2 to 1 block or 3 to 1 block"
Junctional Rhythm - ANSWERS40-60 Regular!
