CCT - Certified Cardiographic Technician Resting ECG Procedures Questions and Answers

Question 1

A CCT is preparing a patient for a resting 12-lead ECG. The patient has a hairy chest. Which of the following is the most appropriate action for the technician to take?

Accepted Answer

Shave the hair at the specific electrode placement sites with patient consent.

Answer

Apply extra gel to the electrodes to ensure contact.

Answer

Place the electrodes on the patient's back instead.

Answer

Proceed with the ECG without any special preparation.

Question 2

While performing a resting ECG, the technician notices a thick, uniform, and fuzzy baseline, characteristic of 60-cycle interference. What is the most likely cause of this artifact?

Accepted Answer

There is electrical interference from nearby equipment.

Answer

The patient is cold and shivering.

Answer

An electrode has become loose or detached.

Answer

The patient is talking or moving.

Question 3

A patient is in the supine position for a resting ECG. Where should the V4 electrode be placed?

Accepted Answer

In the 5th intercostal space, at the mid-clavicular line.

Answer

In the 4th intercostal space, at the right sternal margin.

Answer

Midway between the V2 and V4 electrodes.

Answer

In the 5th intercostal space, at the mid-axillary line.

Question 4

A technician observes a 'wandering baseline' on the ECG tracing, where the isoelectric line slowly moves up and down. Which of the following is a common cause of this artifact?

Accepted Answer

Patient's respiratory movements.

Answer

Incorrect paper speed.

Answer

AC electrical interference.

Answer

Expired electrode gel.

Question 5

To obtain a standard 12-lead ECG, how many electrodes are placed on the patient?

Accepted Answer

10

Answer

12

Answer

6

Answer

15

Question 6

A patient scheduled for a resting ECG reports having applied body lotion this morning. What is the best course of action for the CCT?

Accepted Answer

Clean the electrode sites with an alcohol wipe to remove the lotion.

Answer

Wipe the electrode sites with a dry gauze pad before application.

Answer

Apply the electrodes directly over the lotion.

Answer

Reschedule the ECG for another day.