What happens to the ST-segment on a 12-lead electrocardiogram after a large acute myocardial infarction with injury to the myocardial tissue?

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After a large acute myocardial infarction with injury to the myocardial tissue, the ST-segment elevates on the electrocardiogram due to the injury and elevated levels of potassium ions in the extracellular space surrounding the damaged tissue. This is known as ST-segment elevation myocardial infarction (STEMI) and indicates a complete interruption of blood flow to a specific area of the heart muscle.

What Happens to the ST-Segment on a 12-Lead Electrocardiogram After