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Category: Critical Care Medicine-Renal, Electrolyte and Acid Base Disorders--->Oliguria and Polyuria
Page: 2

Question 6#Print Question

The patient continues to have persistent blood drainage from his abdominal drain overnight. He stops making urine for last 6 hours, which was not identified until morning. In the morning, his vitals are:

  • heart rate 110 beats/min
  • blood pressure 80/45 mm Hg
  • respiratory rate 25 breaths/min
  • SpO2 100% on 2 L oxygen

He has the following lab values:

  • Hemoglobin 5.6 g/dL
  • Serum urea 24 mg/dL
  • Creatinine 1.8 mg/dL

You transfuse him 3 units of packed red blood cells and 1 unit of fresh frozen plasma and notify the surgeon of the bleeding. He is taken to the operating room where his surgical bleeding is identified and repaired. He receives 2 L of crystalloid, 2 unit fresh frozen plasma, and 2 units of platelets in the operating room, but his urine output does not improve. In the next 12 hours, his vitals are normalized but he remains anuric.

Which of the following is most likely to prevent the need for dialysis?

A. Mannitol
B. Lasix to treat his oliguria
C. Dopamine at 3 µg/min
D. None of the above




Category: Critical Care Medicine-Renal, Electrolyte and Acid Base Disorders--->Oliguria and Polyuria
Page: 2 of 2