CET EKG Technician Skills and Knowledge Base 5

Question 1

A pacemaker spike followed by a wide QRS complex most likely indicates:

Accepted Answer

Ventricular pacing

Answer

A pacemaker spike immediately preceding a wide QRS indicates ventricular pacing, as the stimulus directly activates ventricular muscle.

Question 2

Which precordial lead provides the best view of right ventricular activity?

Accepted Answer

V1

Answer

V1, placed over the right side of the sternum at the 4th ICS, is closest to the right ventricle and best reflects its electrical activity.

Question 3

Before performing an EKG on a patient with a temporary transvenous pacemaker, the technician should:

Accepted Answer

Verify the pacemaker settings and inform the supervising clinician

Answer

The technician should document the pacemaker's presence and settings, inform clinical staff, and proceed with standard technique without altering the device.

Question 4

The T wave on an EKG represents:

Accepted Answer

Ventricular repolarization

Answer

The T wave reflects ventricular repolarization, the process by which ventricular cells return to their resting electrical state.

Question 5

A patient's EKG shows a short PR interval and a delta wave at the beginning of the QRS. This pattern is consistent with:

Accepted Answer

Wolff-Parkinson-White (WPW) syndrome

Answer

WPW syndrome is characterized by a short PR interval and delta wave caused by an accessory conduction pathway bypassing the AV node.

(CET) Certified EKG Technician Practice Test

(CET) Certified EKG Technician Practice Test

CET EKG Technician Skills and Knowledge Base 5