You are called to the scene of a patient with abdominal pain. Upon arrival, you find a 38-year-old Asian man on the floor next to his desk writhing in pain. He is complaining of severe right-sided flank pain. His blood pressure is 140/90, pulse 100, and his skin is ashen and diaphoretic. You suspect:

A) renal colic. B) myocardial infarction.
C) Mittelschmerz. D) cholecystitis.

A