Question

When the ECG of a person was analysed, the Q and R waves were found to be enlarged. It could be due to

• A. myocardial infarction
• B. hypertension
• C. cardiac arrest
• D. bradycardia.

Answer 1

The correct option is A myocardial infarction

In a myocardial infarction transmural ischemia develops. In the first hours and days after the onset of a myocardial infarction, several changes can be observed on the ECG. First, large peaked T waves (or hyperacute T waves), then ST elevation, then negative T waves and finally pathologic Q waves develop..

So, the correct option is 'Option A'.