EKG Certification Exam Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

EKG Certification Exam Questions and Answers | Latest Version | 2025/2026 | Correct & Verified What is the standard paper speed for an EKG? 25 mm/sec What is the standard voltage calibration for an EKG machine? 10 mm/mV What is the correct placement for the V1 precordial lead? Fourth intercostal space at the right sternal border What is the correct placement for the V6 precordial lead? Fifth intercostal space at the midaxillary line Which rhythm shows no distinct P waves and an irregularly irregular ventricular response? Atrial fibrillation 2 Which rhythm shows sawtooth P waves? Atrial flutter Which rhythm has wide, bizarre QRS complexes without preceding P waves? Ventricular tachycardia Which rhythm is rapid, chaotic ventricular activity with no cardiac output? Ventricular fibrillation Which rhythm is characterized by a slow rate under 60 beats per minute? Bradycardia Which rhythm is characterized by a fast rate over 100 beats per minute? Tachycardia Which artifact results from patient movement or tremors? Somatic tremor 3 Which artifact results from poor electrode contact or loose electrodes? Wandering baseline What is the primary purpose of an EKG? To record the electrical activity of the heart Which wave represents atrial depolarization on an EKG? P wave Which wave represents ventricular depolarization? QRS complex Which wave represents ventricular repolarization? T wave What is the normal heart rate range for an adult