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Relias Basic Dysrhythmia Test fully solved & updated

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This list covers the major cardiac rhythms from normal to life-threatening. It starts with normal sinus rhythm (60-100 bpm) and its variants: sinus arrhythmia (rate varies with breathing), bradycardia (60 bpm), and tachycardia (100 bpm). Atrial rhythms include PACs (early beats), a-fib (irregularly irregular), and atrial flutter (sawtooth pattern). Junctional rhythms (slow or fast) feature inverted or absent P-waves. Heart blocks range from first-degree (delayed PR interval) to second-degree type 1 (progressive delay then dropped beat), type 2 (sudden dropped beats), and third-degree (complete AV dissociation requiring a pacemaker). Ventricular rhythms include PVCs (early beats, can be bigeminy or couplets), idioventricular (40 bpm, "dying heart"), accelerated idioventricular (50-100 bpm, benign post- MI), monomorphic V-tach (fast, wide QRS), torsades de pointes (twisting QRS), and vfib (chaotic quivering). Finally, asystole is flatline, while pacemaker issues include failure to capture (no response to spike) or failure to sense (spike at wrong time). Atrialpaced has a spike before P-wave, and ventricular-paced has a spike before a wide QRS.

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Relias Basic Dysrhythmia Test fully
solved & updated 2025-2026(latest
version verified for accuracy)
(Questions + Answers) Solved 100%
Correct!! Basic Dysrhythmia-Relias
1. 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



2. Sinus Arrhythmia

ANSWER: Appearance is ALMOST NORMAL: Respiratory - Circulatory interaction. Rate INCREASES with
INSPIRATION (IN=IN)



3. Sinus Bradycardia

ANSWER: <60 (normal sinus rhythm)



4. Sinus Tachycardia

ANSWER: >100 (100-150) (normal sinus rhythm)



5. 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



6. 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)



7. Atrial Fibrillation (A-Fib)

ANSWER: An irregular and often very fast heart rate originating from abnormal conduction in the atria



8. Atrial Flutter

ANSWER: Irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block"



9. Junctional Rhythm

ANSWER: 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)



10. Junctional Tachycardia

ANSWER: >60 bpm (ms. K; 150-250). - KEY: will be regular (consistent). - AV junction produces a rapid
sequence of QRS-T cycles. - p-wave often inverted/buried/follow QRS



11. Premature Junctional Contraction

ANSWER: Inverted P wave or hidden P wave. PRI <0.12 or none. Normal QRS



12. Supraventricular Tachycardia (SVT)

ANSWER: An abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at
or above the AV node



13. First Degree Heart Block

ANSWER: Atrioventricular (AV) block in which the atrial electrical impulses are delayed by a fraction of a
second before being conducted to the ventricles



14. 2nd Degree Heart Block Type 1 (Wenkebach)

ANSWER: Progressively longer PR interval until the P wave is not followed by a QRS

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