HY USMLE Q #1132 – Pharm

An 80-year-old man comes to emergency for a 1-day history of inability to void and urinary incontinence. He has seasonal allergies, benign prostatic hyperplasia, hypertension, and left heart failure. His regular medications include chlorpheniramine, metoprolol, lisinopril, atorvastatin, and terazosin. He was also given metoclopramide by his wife two weeks ago for an episode of indigestion. Vitals are normal. Post-void volume is 400 mL. Which of the following is most likely contributory to this patient’s acute presentation?

  Atorvastatin
  Chlorpheniramine
  Lisinopril
  Metaclopramide
  Metoprolol
  Terazosin