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vodka [1.7K]
4 years ago
14

How do electrocardiograms affect people?

Biology
1 answer:
masha68 [24]4 years ago
7 0
The correct answer is A, positively, it helps to diagnose heart disease. 
An electrocardiogram records the electrical activity of your heart at rest. It provides information about the heart rate and rhythm, and shows if there is enlargement of the heart due to high blood pressure or evidence of a previous heart attack. 

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