500
You are caring for a patient who is 3 days post CABG. On day 2 his BUN was 50 and creatinine was 1.0, his HCT was 29.5. The physician orders NS @ 125/hr x 2 liters. On day 3 his BUN is 55, creatinine 1.2 and HCT 27.5. Based on these findings, you suspect that the physician would consider this test.
What is stool for occult blood?