Multiple choice

Electrocardiogram is used to measure the health of the ____.

  1. Heart

  2. Lungs

  3. Ear

  4. Stomach

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An electrocardiogram (ECG or EKG) records the electrical activity of the heart over a period of time. It is a standard tool used to diagnose various heart conditions.