NHA EKG (CET) study guide (2023/2024 Latest Update)

What action should the technician instruct the patient to take if any electrodes become loose during at-home use of an ambulatory monitor? - ANSWERSApply surgical tape to the electrodes to keep them in place Which leads record activity of the inferior wall of the left ventricle? - ANSWERSLeads III and AVF What rhythm is characterized by absent P waves, wide QRS complexes, and a ventricular rate between 20-40/mins? - ANSWERSIdioventricular rhythm What leads record electrical activity of the lateral wall of the left ventricle? - ANSWERSLeads I, V6, AVL, and V5 In which locations should the EKG technician place the electrodes for a 3-lead ambulatory monitor? - ANSWERSon 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? - ANSWERSDepressed ST segment What leads are bipolar? - ANSWERSLeads I, II, and III What is the expected reference range for respiratory rate of a newborn patient? - ANSWERS30-49/min An EKG technician is providing instructions for a patient who is scheduled for an exercise stress test. What instructions should technician include? - ANSWERS"You should avoid wearing shoes with high heels for this test." An EKG technician is preparing a patient for an exercise stress test. What statement should the technician make before this test? - ANSWERS"This