Medical Assistant Prep / Unit 22 MAS 530 short lesson, about 20 seconds
The Main Waves
Captions available
The idea
A normal tracing shows a repeating pattern of waves: the P wave, the QRS complex and the T wave.
In practice
The P wave reflects the atria firing; the larger QRS complex reflects the ventricles firing and contracting; the T wave reflects the ventricles recovering.
Where people slip
Learn the names so you can describe what you see, not so that you can diagnose it.
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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