Problem: A 65-year-old man presents to the emergency department with severe pain and tingling in the right leg that began several hours ago but has become increasingly painful. Medical history is significant for heart failure, type 2 diabetes mellitus, paroxysmal atrial fibrillation, and chronic obstructive pulmonary disease. Current medications include metformin, torsemide, valsarten, and secubitral. The patient has a 35-pack-year smoking history. His vitals are blood pressure 140/82 mm Hg and pulse 110 bpm and irregular. On physical examination, the right lower leg appears to have mottled skin and is cool to touch, with an absent right dorsalis pedis pulse on palpation. There is a carotid bruit on the right side. Which of the following medications could have prevented this situation? Need Assignment Help? A. Factor Xa inhibitors B. Aspirin C. Beta-blockers D. Phosphodiesterase inhibitors