Question

What is paper recording speed for routine work?

(a) 10 mm/s

(b) 15 mm/s

(c) 20 mm/s

(d) 25 mm/s

This question was posed to me in my homework.

This interesting question is from System Concepts in portion Patient Monitoring System of Biomedical Instrumentation

Answer 1

Correct choice is (c) 20 mm/s

The explanation: Electrocardiograms are almost invariably recorded on graph paper with horizontal and vertical lines at 1 mm intervals with a thicker line at 5 mm intervals. Time measurements and heart rate measurements are made horizontally on the electrocardiogram.