Multiple choice general knowledge science & technology

ECG is used for the diagnosis of aliments of

  1. Brain

  2. Heart

  3. Kidneys

  4. Lungs
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B Correct answer
Explanation

ECG (electrocardiogram) records the heart electrical activity and is the primary diagnostic tool for cardiac arrhythmias, heart attacks, and other heart conditions. It does not diagnose brain, kidney, or lung conditions - those use EEG, renal function tests, and spirometry respectively.

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