NTA NTA Telemetry Equipment and Technology 1

Question 1

What is the standard ECG paper speed used in the United States?

Accepted Answer

25 mm/sec

Answer

The standard ECG paper speed in the US is 25 mm/second, where each small square represents 0.04 seconds.

Question 2

What is the primary function of a telemetry transmitter?

Accepted Answer

Wirelessly transmits cardiac signals to a central monitor

Answer

A telemetry transmitter wirelessly sends the patient's cardiac electrical signals to a central monitoring station for continuous surveillance.

Question 3

In MCL1 electrode placement, where is the positive electrode positioned?

Accepted Answer

4th intercostal space, right sternal border (V1 position)

Answer

MCL1 uses the positive electrode at the V1 position (4th intercostal space, right sternal border) and the negative electrode at the left shoulder.

Question 4

Why must telemetry transmitter batteries be checked and replaced regularly?

Accepted Answer

To ensure continuous, uninterrupted cardiac signal transmission

Answer

Dead or weak batteries cause signal loss, leaving the patient unmonitored; regular battery replacement prevents this safety risk.

Question 5

What is the most common cause of 60-cycle interference artifact on a telemetry strip?

Accepted Answer

Electrical interference from nearby equipment and/or loose lead connections

Answer

60-cycle (AC) interference appears as a thick, fuzzy baseline and is caused by nearby electrical equipment or poor electrode/lead wire contact.

NTA - National Telemetry Association Practice Test