Nha Ekg Certification Test Verified Questions And Answers

Which of the following lead groups are bipolar leads? {Ans: I,II, and III}For a normal patient, which of the following describes the pattern of the anticipated QRS complex in V4? {Ans: Half positive, Half negative}A patient loses consciousness. The EKG tracing reveals ventricular fibrillation. Which of the following should the EKG technician do first? A) Notify the physician of the arrest B) Call for help and begin CPR C) Go get the automated external defibrillator D) Administer oxygen {Ans: B. Call for help and begin CPR}An EKG tech should recognize that a rhythm strip should be at least how many seconds long to identify rate and rhythm? {Ans: 6 seconds}Which of the following heart blocks is the most serious? {Ans: Third degree AV block}Which of the following hearts blocks is the most serious? {Ans: Third degree AV block}