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Anaesthesia · Preoperative assessment: obstructive jaundice
Sample itemA 60-year-old man with obstructive jaundice from carcinoma of the head of the pancreas is planned for surgery. Which preoperative measure lowers the risk of postoperative acute kidney injury?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Generous intravenous hydration with urine output monitoring
Obstructive jaundice predisposes to acute kidney injury through endotoxaemia, bile salt effects on renal vessels and volume depletion. Adequate preoperative hydration is the key protective measure, along with vitamin K to correct the coagulopathy and avoidance of nephrotoxins.
Option by option
A. Routine NSAIDs for preoperative analgesia
NSAIDs are nephrotoxic and also affect platelet function.
B. Fluid restriction to avoid hepatic congestion
Fluid restriction would worsen volume depletion and renal risk.
C. Generous intravenous hydration with urine output monitoring (correct)
Correct. Volume loading and monitoring of urine output protect the kidney in jaundiced patients.
D. A high-dose aminoglycoside as routine prophylaxis
Aminoglycosides are nephrotoxic and are not given as routine prophylaxis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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