A patient in their 30s with a history of hypertension presented to the emergency department with acute chest pain that had begun 4 hours earlier. On examination, the patient’s blood pressure, heart rate, and respiratory rate were 117/78 mm Hg, 88 beats/min, and 20 breaths/min, respectively. A 12-lead electrocardiogram (ECG) was obtained (Figure) at the time of admission. The high-sensitivity troponin I level was 0.155 ng/mL (normal range: <0.034 ng/mL; to convert to μg/L, multiply by 1.0). The B-type natriuretic peptide and serum electrolyte levels were within normal limits. The patient was diagnosed with acute ST-segment elevation myocardial infarction (STEMI) and was immediately transferred to the catheterization laboratory.
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CME Disclosure Statement: Unless noted, all individuals in control of content reported no relevant financial relationships. If applicable, all relevant financial relationships have been mitigated.
Corresponding Author: Guilan Zhai, MD, Emergency Department, The First Affiliated Hospital of Jinzhou Medical University, Renmin St, Jinzhou, Liaoning 121000, China (email@example.com).
Published Online: May 2, 2022. doi:10.1001/jamainternmed.2022.1302
Conflict of Interest Disclosures: None reported.
Credit Designation Statement: The American Medical Association designates this Journal-based CME activity activity for a maximum of 1.00 AMA PRA Category 1 Credit(s)™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
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