Medical Assistant Prep / Unit 22 MAS 531 short lesson, about 20 seconds
Reading the Graph Paper
Captions available
The idea
ECG paper is a grid of small and large boxes that measure time.
In practice
Each small box, one millimeter wide, equals four hundredths of a second; each large box, five millimeters wide, equals two tenths of a second.
Where people slip
Time measurements depend on the machine's standard settings, so use the settings the practice has configured.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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