BASIC DYSRHYTHMIA review questions and answers with solutions 2025

normal sinus rhythm (NSR) Criteria: (PR, QRS, QT, Rhythm: reg or irreg) - ANSWER 1 P-wave for Every QRS, REGULAR rhythm PR: 0.12-0.20 QRS: 0.06-0.10 BBB = > 0.12 QT: 0.36-0.44 BPM: 60-100 Sinus Bradycardia Criteria: (PR, QRS, QT, Rhythm: reg/irreg) - ANSWER PR: 0.12-0.20 QRS: 0.06-0.10 QT: 0.36-0.44 BPM: < 60 (Reg. rate) Tx: Atropine 0.5mg, Pace, Dopamine 2-10 mcg/kg/min, Epie 2-10 mcg/min Sinus Tachycardia Criteria: (PR, QRS, QT, Rhythm: reg/irreg) - ANSWER PR: 0.12-0.20 QRS: 0.06-0.10 QT: 0.36-0.44 BPM: 100-150 (Reg. rate, P wave may merge with T-wave) Cause: fear, anxiety, hypoxia, sepsis, hypovolemia, infection Sinus Arrhythmia Criteria: (PR, QRS, QT, Rhythm: reg/irreg) - ANSWER PR: 0.12-0.20 QRS: 0.06-0.10 QT: 0.36-0.44 BPM: HR increase w/ inspiration, HR decrease w/expiration P-P interval lengthen and shorten with respirations Irreg Rhythm NO TX Sinus Pause Criteria: (PR, QRS, QT, Rhythm) - ANSWER