Elecrocardiography
What does an electrcardiogram measure? electrical activity of the heart
What does an ECG represent? the amplitude and duration of electrical activity
Amplitude.? amount of electrical activity
Duration? length of electrical activity
What does the pattern of waves indicate? the hearts rhythm
What is the purpose of an ECG? diagnosing and monitoring many diseases
What can't an ECG tell you? how ell the heart is contracting
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