A 22-year-old white man presented to the ER with acute non-ST-segment-elevation MI, after playing basketball. He had experienced chest pain on and off for more than 10 hours before presentation. His initial EKG showed T-wave inversions in leads III and avF (see image), and his troponin T level was 1.2 ng/mL. The patient’s initial pain…

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A 21-year-old Division I college football player presented with palpitations that had started during athletic practice. He was referred to a cardiologist for further evaluation. Vital signs and physical exam were normal. An EKG showed prominent R waves, inverted T waves in leads V1–V2, along with a biphasic T wave in lead V3. QRS axis and…

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