AHN 568 Unit 1 300 Questions – EKG, Cardiac Rhythms, Electrophysiology Exam

This document contains approximately 300 exam-style questions with verified answers focused on AHN 568 Unit 1, covering advanced cardiac electrophysiology and EKG interpretation. It includes detailed content on cardiac conduction pathways (SA node, AV node, Bundle of His, Purkinje fibers), action potentials, ion movement, and rhythm analysis, as clearly outlined across pages 1–37 of the document. The study guide provides an in-depth review of essential cardiovascular concepts including EKG waveforms (P wave, QRS complex, T wave), intervals (PR, QT), arrhythmias (atrial fibrillation, ventricular tachycardia, torsades de pointes), heart blocks, bundle branch blocks, and myocardial infarction patterns. It also explores electrolyte imbalances, pharmacological effects (e.g., digoxin, beta blockers), autonomic nervous system influence, and clinical interpretation of ischemia, injury, and infarction. The material combines theoretical explanations with clinically relevant scenarios, helping students build strong diagnostic and analytical skills required in advanced nursing and acute care settings. This document is closely aligned with core cardiovascular and advanced health assessment curricula and is commonly linked to textbooks such as Rapid Interpretation of EKG’s by Dale Dubin and Marriott’s Practical Electrocardiography, which serve as foundational references for understanding cardiac rhythms, conduction abnormalities, and EKG interpretation. The questions reflect key principles from these texts, particularly in rhythm recognition, axis deviation, and clinical correlation. This study guide is highly relevant for students and professionals enrolled in: Advanced Health Assessment (AHN 568 or equivalent) Nursing programs (BSN, MSN, Nurse Practitioner tracks) Critical care and emergency nursing courses Cardiology and telemetry training programs Paramedic and advanced clinical practice training It is especially beneficial for nursing students, nurse practitioner candidates, ICU/ER nurses, and healthcare professionals preparing for exams or seeking to strengthen their expertise in cardiac monitoring, rhythm interpretation, and patient assessment in acute care environments. Keywords: EKG interpretation, cardiac rhythms, electrophysiology, SA node, AV node, bundle of his, purkinje fibers, arrhythmias, atrial fibrillation, ventricular tachycardia, torsades de pointes, heart blocks, bundle branch block, myocardial infarction, ST elevation, QT interval, electrolyte imbalance, digoxin toxicity, autonomic nervous system, cardiac assessment