Which of the following EKG changes is commonly seen in a myocardial infarction?

A. Absent P waves – Absent P waves are typically seen in atrial fibrillation, not myocardial infarction. B. Peaked T waves – Peaked T waves are most commonly associated with hyperkalemia, not MI. C. ST segment elevations – ST elevation is a hallmark sign of an acute myocardial infarction (STEMI) and indicates transmural (full-thickness) myocardial injury. D. Prolonged PR interval – A prolonged PR interval may indicate first-degree AV block, which is not specific to myocardial infarction.