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ECG

Adaptive test — questions are selected based on your ability estimate. — Tag: ECGMeasures

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What does an electrocardiogram (ECG) directly measure?

The mechanical contraction and relaxation of the heart chambers The pressure changes within the heart chambers during systole and diastole The summated electrical activity of the heart detected through electrodes on the body surface The volume of blood ejected by the ventricles during each cardiac cycle

Evaluating…