CET EKG Technician Roles and Responsibilities 3

Question 1

What is the correct lead placement site for the V1 electrode in a standard 12-lead EKG?

Accepted Answer

4th intercostal space, right sternal border

Answer

V1 is placed at the fourth intercostal space along the right sternal border, a standard landmark for accurate precordial lead placement.

Question 2

Which document guides an EKG technician's daily scope of practice and professional conduct?

Accepted Answer

State practice act and the employer's policies and procedures

Answer

The state practice act establishes legal scope, while employer policies operationalize those standards in the specific workplace setting.

Question 3

During a 12-lead EKG, a technician observes that lead II shows a flat line while other leads appear normal. The most likely cause is:

Accepted Answer

A detached or faulty RA or LL electrode

Answer

Lead II is the voltage difference between RA and LL; a flat line in one lead with others intact indicates an electrode connection problem, not a cardiac event.

Question 4

Which of the following tasks is OUTSIDE the scope of practice for a certified EKG technician?

Accepted Answer

Diagnosing atrial fibrillation from the rhythm strip

Answer

Diagnosing cardiac arrhythmias is a clinical interpretation task reserved for physicians and, in some settings, advanced practice providers.

Question 5

What is the purpose of the standardization mark (calibration pulse) on an EKG tracing?

Accepted Answer

To confirm that 1 mV of input produces a 10 mm deflection

Answer

The calibration pulse verifies that the machine is correctly calibrated so that 1 millivolt of electrical signal produces exactly 10 mm of waveform deflection.

(CET) Certified EKG Technician Practice Test

(CET) Certified EKG Technician Practice Test

CET EKG Technician Roles and Responsibilities 3