Which term refers to a diagnostic test that records electrical activity of the heart over time?

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Multiple Choice

Which term refers to a diagnostic test that records electrical activity of the heart over time?

Explanation:
Recording the heart's electrical activity over time is done with an electrocardiogram. This diagnostic test uses skin electrodes to pick up the heart’s electrical signals and creates a tracing that shows rhythm and timing of the cardiac cycles, including the P wave, QRS complex, and T wave. It helps detect abnormal heart rhythms, rate issues, and potential conduction problems. The other terms don’t fit: a venipuncturist draws blood, hemiplegia is paralysis on one side of the body, and semicolon is punctuation.

Recording the heart's electrical activity over time is done with an electrocardiogram. This diagnostic test uses skin electrodes to pick up the heart’s electrical signals and creates a tracing that shows rhythm and timing of the cardiac cycles, including the P wave, QRS complex, and T wave. It helps detect abnormal heart rhythms, rate issues, and potential conduction problems. The other terms don’t fit: a venipuncturist draws blood, hemiplegia is paralysis on one side of the body, and semicolon is punctuation.

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