Shap of the QRS: So r is the top of the up and down narrow shape and the t follows this. This is the electrical activity that causes the contraction of the lower part of your heart. So if you are moving or have a firing where the electrical sending signal and the relaxing signal happens on top, it may be pvc. Happens to some and completely normal; doesn't mean anything bad typically.
Answered 9/3/2018
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