Relias Dysrhythmia Basic Test: Answers & Rhythm Guide 2026

Relias Dysrhythmia Basic Test Answers 2026 update
b b b b b b




normal sinus rhythm
b b




heart rhythm originating in the sinoatrial node with a rate in patients at rest
b b b b b b b b b b b b b b




of 60 to 100 beats per minute
b b b b b b b




Sinus Arrhythmia
b




Appearance is ALMOST NORMAL:
Respiratory – Circulatory interaction
Rate INCREASES with INSPIRATION (IN=IN)
b b b b




Sinus Bradycardia
b




<60
normal sinus rhythm
b b

,Sinus Tachycardia
b




>100 (100-150)
normal sinus rhythm b b




Premature Atrial Contraction (PAC) b b b




Heart Rate: Depends on underlying
rhythm Regularity: Interrupts the regularity of unde
b b b b b b b b b b b




rlying rhythm P- b b b




Wave: can be flattened, notched, or unusual. May be hidden within the T
b b b b b b b b b b b b




wave
PRI: measures between .12-
b b b




.20 seconds and can be prolonged; can be different
b b b b b b b b from
other complexes QRS: <.12 seconds b b b




Sinus Arrest/Pause
b




– SA node doesn’t fire
– notice absence of P- b b b




wave for a complete cycle (a missed cycle) length of pause ≠ multiple
b b b b b b b b b b b b b




of normal rate (block)
b b b

, Atrial Fibrillation (A-Fib)
b b




an irregular and often very fast heart rate originating from abnormal condu
b b b b b b b b b b b




ction in the atria
b b b




Atrial Flutter
b




irregular beating of the atria; often described as “a-
b b b b b b b b




flutter with 2 to 1 block or 3 to 1 block”
b b b b b b b b b b




Junctional Rhythm b




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)
b b b b b




Junctional Tachycardia b




>60 bpm (ms. K; 150-250)
– KEY: will be regular (consistent)