Basic Dysrhythmia-Relias Actual Exam with All Questions
and Answers (Graded A+) (Recent Upadated Version) 2024
normal sinus rhythm
heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100
beats per minute
Sinus Arrhythmia
Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia
<60
normal sinus rhythm
Sinus Tachycardia
>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC)
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
- 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)
an irregular and often very fast heart rate originating from abnormal conduction in the
atria
Atrial Flutter
irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1
block"
Junctional Rhythm
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
>60 bpm (ms. K; 150-250)
- KEY: will be regular (consistent)
and Answers (Graded A+) (Recent Upadated Version) 2024
normal sinus rhythm
heart rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100
beats per minute
Sinus Arrhythmia
Appearance is ALMOST NORMAL:
Respiratory - Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
Sinus Bradycardia
<60
normal sinus rhythm
Sinus Tachycardia
>100 (100-150)
normal sinus rhythm
Premature Atrial Contraction (PAC)
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
- 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)
an irregular and often very fast heart rate originating from abnormal conduction in the
atria
Atrial Flutter
irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1
block"
Junctional Rhythm
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
>60 bpm (ms. K; 150-250)
- KEY: will be regular (consistent)
