Oliguria / Anuria / Polyuria (Management) — 72yo Man | Nephrology | MCCQE1 Q#13284
MCCQE1 Question #13284
Dimension of Care
Acute Care
Activity
Management
Objective
Oliguria / Anuria / Polyuria
Section
Medicine / Family Medicine
Subject
Nephrology
Last updated: February 2026
A 72-year-old man is admitted for community-acquired pneumonia and started on IV antibiotics. On day 2, the nurse reports decreased urine output. He has hypertension and osteoarthritis, taking ramipril and frequent ibuprofen. Since admission, he has had poor oral intake and several episodes of diarrhea. Examination shows dry mucous membranes, delayed capillary refill, flat jugular venous pressure, right lower lobe crackles, and a soft, non-tender abdomen with a non-palpable bladder. Over the last 6 hours, he has produced 60 mL of urine via an indwelling catheter. What is the most appropriate next step to diagnose the cause of his acute kidney injury?
Full answer analysis and choices are available inside the practice session.
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