NHA EKG (CET) Study Guide () with Complete Solutions.

What action should the technician instruct the patient to take if any electrodes become loose during at-home use of an ambulatory monitor? - ANSWER-Apply surgical tape to the electrodes to keep them in place Which leads record activity of the inferior wall of the left ventricle? - ANSWER-Leads III and AVF What rhythm is characterized by absent P waves, wide QRS complexes, and a ventricular rate between 20-40/mins? - ANSWER-Idioventricular rhythm What leads record electrical activity of the lateral wall of the left ventricle? - ANSWER-Leads I, V6, AVL, and V5 In which locations should the EKG technician place the electrodes for a 3-lead ambulatory monitor? - ANSWER-on the right shoulder, the left shoulder, and the left abdomen An EKG technician is performing a stress test for a patient. What changes indicate that the patient is beginning to show signs of myocardial ischemia? - ANSWER-Depressed ST segment What leads are bipolar? - ANSWER-Leads I, II, and III What is the expected reference range for respiratory rate of a newborn patient? - ANSWER-30-49/min An EKG technician is providing instructions for a patient who is scheduled for an exercise stress test. What instructions should technician include? - ANSWER-"You should avoid wearing shoes with high heels for this test."