Question

which of the following pain patterns is most consistent with myocardial infarction? feels like \being torn in half\ severe crushing substernal chest pain substernal chest pressure knife - like pain in right chest

Explanation:

Myocardial infarction is typically characterized by severe 'crushing' substernal chest pain. Pain described as 'being torn in half' is more associated with aortic dissection. Substernal chest pressure can be a symptom but is less specific than severe crushing pain. 'Knife - like' pain in the right chest is not a typical pain pattern for myocardial infarction.

Answer:

severe 'crushing' substernal chest pain