A patient presents with severe substernal chest pain.The patient exclaims,"This is the most severe pain I have ever felt!" The patient reports that the pain came on suddenly about 2 hours ago and that three sublingual nitroglycerin tablets have not relieved the pain.The 12-lead ECG reveals only the following abnormalities: T-wave inversion in leads I,aVL,V?,and V?; pathologic Q waves in leads II,III,and aVF; ST segment elevation in leads V?,V?,V?,and V?.Which of the following is probably accurate about this patient?

Question

Quizplus · Accepted Answer

Acute anterior wall infarctions are manifested by electrocardiographic (ECG)changes in leads V? to V?.Inferior infarctions are manifested by ECG changes in leads II,III,and aVF.Lateral wall infarctions are manifested by ECG changes in leads V? to V?,I,and aVL.Posterior wall infarctions are manifested by ECG changes in leads V? to V?.

A Patient Presents with Severe Substernal Chest Pain