Advanced Dysrhythmia Study Guide – ECG Interpretation, Heart Blocks & Ventricular Rhythms Review

This document contains a full set of questions and 100% verified correct answers for the Relias Advanced Dysrhythmia Exam A (2025/2026 edition). Tailored for nursing students, telemetry nurses, ICU staff, and clinicians preparing for ACLS or hospital competency testing, this resource is organized in a clear, rhythm-by-rhythm format with critical electrocardiographic characteristics and interpretive clues. It thoroughly covers ECG recognition and interpretation, including sinus rhythms (normal, bradycardia, tachycardia), atrial rhythms (atrial fibrillation, atrial flutter, PACs), junctional and ventricular rhythms (PVCs, VT, VF, idioventricular rhythms), and AV blocks (1st, 2nd Type I & II, 3rd degree). For each rhythm, it details rate, regularity, P wave characteristics, PR intervals, and QRS duration. Mnemonics and analogies (e.g., “husband and wife don’t communicate” for 3rd-degree block) help reinforce understanding. Also included are pacing rhythm interpretations (atrial, ventricular, AV-paced), failure to capture/sense, and detailed definitions of ECG components such as the P wave, PR interval, QRS complex, QT interval, and normal conduction pathways (SA node, AV node, Purkinje fibers). There’s instruction on rate calculation methods (1500 box method and 6-second strip), and arrhythmia patterns like bigeminy, trigeminy, couplets, triplets, and multifocal PVCs. Perfect for learners in: – Registered Nurse (RN), Telemetry Nurse, ICU/ED Nurse roles – ACLS certification preparation – Nurse Residency or Critical Care Orientation Programs – Cardiac Monitor Technician (CMT) courses – ECG interpretation modules in BSN, ADN, and LPN programs Whether you're reviewing for clinical exams, hospital dysrhythmia competency, or national certification, this document serves as a practical and reliable rhythm recognition tool. Keywords: Relias dysrhythmia exam, advanced ECG, heart blocks, sinus rhythms, atrial fibrillation, atrial flutter, SVT, junctional rhythm, idioventricular, PVCs, ventricular tachycardia, ventricular fibrillation, pacemaker rhythms, AV block types, QRS complex, PR interval, QT interval, ACLS prep, telemetry nurse, monitor tech, cardiac conduction, bigeminy, trigeminy, failure to capture