CMT Monitoring Techniques and Equipment 2

Question 1

Which electrode placement is used for a modified chest lead (MCL1) during continuous cardiac monitoring?

Accepted Answer

Positive electrode at V1 position, negative at left shoulder

Answer

MCL1 uses the positive electrode at the V1 position (fourth intercostal space, right sternal border) and the negative electrode at the left shoulder.

Question 2

What does a wandering baseline artifact on a cardiac monitor most commonly indicate?

Accepted Answer

Poor electrode contact or patient movement

Answer

A wandering baseline is most commonly caused by poor electrode-skin contact, patient movement, or respiratory variation.

Question 3

The gain (sensitivity) setting on a cardiac monitor is typically set to what default value?

Accepted Answer

10 mm/mV

Answer

Standard gain is 10 mm/mV, meaning a 1 mV signal produces a 10 mm deflection on the monitor.

Question 4

Which type of cardiac monitor continuously records and stores cardiac rhythm data that can be retrieved for analysis?

Accepted Answer

Holter monitor

Answer

A Holter monitor continuously records cardiac rhythm for 24-48 hours, storing all data for later analysis.

Question 5

When a 60-cycle interference (AC interference) artifact appears on the monitor, what is the most appropriate first action?

Accepted Answer

Check and replace electrodes, ensure proper grounding

Answer

AC interference is first addressed by checking electrode contact quality and ensuring proper grounding, as loose electrodes are the most common cause.

(CMT) Certified Cardiac Monitor Technician Practice Test

(CMT) Certified Cardiac Monitor Technician Practice Test

CMT Monitoring Techniques and Equipment 2