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Which of the following best describes the function of an electrocardiogram (EKG)? It measures the electrical...

Which of the following best describes the function of an electrocardiogram (EKG)?

It measures the electrical changes that occur in the heart during the cardiac cycle

It measure the heart rate

It measure blood pressure

It tells you when you are dead

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Answer #1

The electrocardiogram is a type of test which is done to measure the activity and rhythm of heart so as to check its functioning. It traces the electrical activity of the cardiac cycle by dividing it into various intervals such as P wave, QRS wave and T wave.

Hence, the correct option is (a)

About the incorrect options-

(b) It directly does not reveal the heart rate, but it can be calculated by it.

(c) No, blood pressure is measured by sphygmomanometer.

(d) Well, thats not the aim here.

Hope it helps, Good luck

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