CET ECG Equipment Operation & Maintenance 1

Question 1

What is the primary purpose of calibrating an ECG machine?

Accepted Answer

To ensure accurate output of waveforms

Answer

To clean the machine's internal components.

Answer

To update its software.

Answer

To check for electrical interference.

Question 2

Which component of the ECG machine amplifies the electrical signal from the heart?

Accepted Answer

Amplifier

Answer

Electrodes

Answer

Filter

Answer

Display screen

Question 3

How often should ECG electrodes be replaced?

Accepted Answer

After each use

Answer

Once a month

Answer

Once a week

Answer

Only when they fall off

Question 4

Which maintenance step helps prevent artifacts in ECG readings?

Accepted Answer

Cleaning electrodes and checking connections

Answer

Changing the paper roll

Answer

Updating the software

Answer

Recharging the battery

Question 5

Why is it important to store ECG machines properly?

Accepted Answer

To protect the machine from environmental damage

Answer

To ensure it is visible to staff

Answer

To keep it away from patients

Answer

To avoid theft

Question 6

What should be done before using an ECG machine?

Accepted Answer

Check battery, leads, and calibration

Answer

Only wipe the screen

Answer

Replace electrodes only

Answer

Turn on the machine for 5 seconds

Question 7

Which action may lead to inaccurate ECG recordings?

Accepted Answer

Placing the machine near a cellphone

Answer

Using fresh electrodes

Answer

Patient lying still

Answer

Turning off lights

Question 8

Why should you inspect ECG cables regularly?

Accepted Answer

To prevent signal issues

Answer

To ensure aesthetic appearance

Answer

To reduce machine weight

Answer

To increase screen brightness

Question 9

What feature helps detect machine malfunction during ECG?

Accepted Answer

Self-test indicators

Answer

Battery light

Answer

Paper tray

Answer

Color display