The Patient Is Admitted with a Suspected Acute Myocardial Infarction

The patient is admitted with a suspected acute myocardial infarction (AMI) .In assessing the 12-lead electrocardiogram (ECG) changes,which findings would indicate to the nurse that the patient is in the process of an evolving Q wave myocardial infarction (MI) ?

A) ST-segment elevation on ECG and elevated CPK-MB or troponin levels
B) Depressed ST-segment on ECG and elevated total CPK
C) Depressed ST-segment on ECG and normal cardiac enzymes
D) Q wave on ECG with normal enzymes and troponin levels