Relias Dysrhythmia Basic A (2025/2026) Actual Exam Test| COMPLETE QUESTIONS WITH VERIFIED ANSWERS (100% Accurate Solutions)| GET IT A+!!

Relias Dysrhythmia Basic A (2025/2026) Actual Exam Test| COMPLETE QUESTIONS WITH VERIFIED ANSWERS (100% Accurate Solutions)| GET IT A+!! Normal sinus rhythm - ANSWER Regular Rate: 60-100 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Bradycardia - ANSWER Regular Rate: <60 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Sinus Tachycardia - ANSWER Regular Rate: 100-150 P Wave: Present, upright PR Interval: 0.12-0.20 sec QRS: <0.12 sec Premature Atrial Contraction - ANSWER IRREGULAR Rate: depends on underlying rhythm P wave: Present or hidden in T wave PR Interval: 0.12-0.20 sec QRS: <0.12 sec Atrial Fibrillation - ANSWER IRREGULAR Atrial rate: UNMEASURABLE Ventricular rate: variable P wave: unable to see PR Interval: N/A QRS: <0.12 sec 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: 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 A fib RVR - ANSWER IRREGULAR Ventricular rate: 100-175 P wave: unable to see PR Interval: N/A QRS <0.12 sec Atrial Flutter - ANSWER Usually REGULAR can be irregular Atrial rate: 250-350 Ventricular rate: variable BUT < atrial rate P Wave: Flutter PR Interval: N/A QRS: <0.12 sec Supraventricular Tachycardia - ANSWER Regular Rate: 150-350 P wave: Hidden in QRS or T wave PR: unable to determine QRS: <0.12 sec Atrial Flutter - ANSWER irregular beating of the atria; often described as "a-flutter with 2 to 1 block or 3 to 1 block" 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) 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 Premature Junctional Contraction - ANSWER Inverted p wave or hidden p wave PRI<0.12 or none Normal QRS Failure to Capture - ANSWER Spikes with no QRS Failure to Sense - ANSWER Spikes happen regardless of QRS on their own How to determine the rhythm - ANSWER Regular or irregular? Rate? P before every QRS? QRS for every P? QRS wide or narrow? QT Interval - ANSWER 0.34-0.43 P Wave - ANSWER 0.06-0.12 sec PR Interval - ANSWER 0.12-0.20 sec SA Node Firing Rhythms - ANSWER *Fires normally @ 60-100* -SR 60-100 -SB <60 -ST 100-150 -SVT 150-350 AV Node Firing, SA Node Failed Rhythms - ANSWER *Fires normally @ 40-60* -Junctional rhythm 40-60 -Accelerated junctional rhythm 60-100 -Junctional tachycardia 100-150 Only Purkinje Fibers Firing Rhythms (Everything else has failed) - ANSWER *Fires normally @ 20-50* -Idioventricular 20-50 -Accelerated idioventricular 50-100 Supraventricular Tachycardia (SVT) - ANSWER an abnormal heart rhythm arising from aberrant electrical activity in the heart; originates at or above the AV node 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 2nd degree heart block type 1 (Wenkebach) - ANSWER Progressively longer PR interval until the P wave is not followed by a QPR 2nd Degree Heart Block (Mobitz II) - ANSWER Rare, but more serious Sudden appearance of a nonconducted P-wave P-waves are nl, but some aren't followed by a QRS complex PR & RR intervals are constant Junctional Rhythm - ANSWER Regular Rate: 40-60 P Wave: ABSENT or INVERTED PR Interval: None or <0.12 QRS: <0.12 sec Accelerated Junctional Rhythm - ANSWER Regular Rate: 60-100 P Wave: NONE or INVERTED PR Interval: None or <0.12 QRS: <0.12 sec Junctional Tachycardia - ANSWER Regular Rate: >100 P Wave: NONE or INVERTED PR Interval: None or <0.12 QRS: <0.12 sec Premature Ventricular Contraction - ANSWER IRREGULAR Rate: refer to underlying rhythm P Wave: NONE PR Interval: N/A QRS: WIDE and BIZARRE , >0.12 sec Ventricular Tachycardia - ANSWER Regular Rate: >100 P Wave: NONE PR Interval: N/A QRS: WIDE and BIZARRE, >0.12 sec