Comment on the diagnosis: (A) Prinzmetal angina, (B) Myocardial infarction, (C) Pulmonary embolism, (D) Hyperkalemia
Answer is B. ECG shows hea rate of 70/min with T wave inversion noted in leads V1 to V4. Indicates possible Myocardial ischemia. Choice A and D are ruled out as there is no ST elevation. Pulmonary embolism leads to "S1Q3T3 pattern" (McGinn-White Sign)