To check the standardization of the ECG machine, the medical assistant depresses the standardization button. The stylus should deflect how many millimeters?
A) 20
B) 5
C) 15
D) 10

Question

Quizplus · Accepted Answer

When a machine is in standard mode or set at 1 STD, 1 mV of electricity causes the stylus to move vertically 10 mm, or two large squares. The stylus should deflect exactly 10 mm when the standardization button is depressed with a quick pecking motion.

To Check the Standardization of the ECG Machine, the Medical