Which of the following is the most characteristic electrocardiographic finding in myocardial infarction?
A) T wave inversion
B) ST segment elevation
C) ST segment depression
D) Downward-deflected Q waves

Question

Quizplus · Accepted Answer

When cardiac tissue fed by the left anterior descending and circumflex branches of the left coronary artery infarct,Q waves become abnormal most noticeably on the left precordial leads.As a result,the Q waves deflect downward instead of upward because of a lack of counterbalancing electrical forces on the affected side.

Which of the Following Is the Most Characteristic Electrocardiographic Finding