A Nurse Reviews the Serum Laboratory Tests of a Male

Multiple Choice

A nurse reviews the serum laboratory tests of a male client scheduled for cholecystectomy. Which of the following laboratory results should alert the nurse, as it can be a reason to postpone the surgery?

A) BUN = 20 mg/dL
B) Hematocrit = 30%
C) Platelets = 200,000 cells/µL
D) Potassium = 4.0 mEq/L