In which of the following diseases or conditions would one likely see acute S-T segment elevation on an electrocardiogram?

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In a patient with chest pain, ST segment elevation is one of the hallmarks of acute myocardial infarction. ST segment elevation in myocardial infarction is commonly abbreviated as STEMI. Mitral valve prolapse is a chronic condition in which the chordae tendineae of the heart are longer or more elastic than normal, allowing the mitral valve to billow back into the left atrium during ventricular systole. Skeletal deformities of the chest wall, like pectus excavatum or pectus carinatum are unlikely to cause acute changes on an electrocardiogram. The most common electrocardiographic finding in a patient with a high fever is sinus tachycardia.

In Which of the Following Diseases or Conditions Would One