CRAS case studies
CRAS · Put your knowledge to work in context.
The Certified Registered Arrhythmia Specialist (CRAS) is a professional credential intended for clinicians whose work centers on cardiac rhythm care - nurses and allied professionals in electrophysiology labs, device clinics, telemetry units, and arrhythmia practices. It signals that a candidate can interpret rhythms accurately, explain arrhythmia mechanisms, and reason through pharmacologic and device-based management in realistic clinical scenarios. The exam is multiple choice and is organized around nine content areas: basic cardiac anatomy and physiology, electrophysiology and arrhythmia mechanisms, ECG interpretation and rhythm recognition, diagnostic testing and monitoring, pharmacologic therapy, pacemakers and ICDs, catheter ablation and EP procedures, patient care and education, and safety and quality practice. Rhythm recognition, device therapy, and electrophysiology together carry the heaviest emphasis, so preparation should be weighted accordingly rather than spread evenly. The CRAS case studies are 5 cases and about 1,542 words.
1Syncope in a Patient with Brugada Pattern
A 45-year-old man presents with two episodes of syncope in the past month, both occurring at rest while sitting. He has no prior cardiac history.
309 words, about 2 min2Post-Ablation Care for Atrial Fibrillation
A 62-year-old woman with symptomatic paroxysmal atrial fibrillation undergoes pulmonary vein isolation (PVI) with radiofrequency ablation. She has a history of hypertension and diabetes, and her CHA2DS2-VASc score is 3.
289 words, about 1 min3Pacemaker Malfunction in a Dependent Patient
An 80-year-old man with a dual-chamber pacemaker implanted 5 years ago for complete heart block presents with fatigue and dizziness. He is pacemaker-dependent.
336 words, about 2 min4Wide Complex Tachycardia in the Emergency Department
A 55-year-old man with a history of myocardial infarction presents to the emergency department with palpitations and lightheadedness. He is diaphoretic and his blood pressure is 85/50 mmHg.
274 words, about 1 min5Anticoagulation Decision in a Patient with Atrial Fibrillation and Falls
An 82-year-old woman with permanent atrial fibrillation, hypertension, and diabetes has a CHA2DS2-VASc score of 5 and a HAS-BLED score of 3. She lives alone and has had two mechanical falls in the past year without serious injury.
334 words, about 2 min