title: Creatinine clearance in critically ill surgical patients.
abstract: Standard tests of renal function (urine output, BUN, and serum creatinine) were compared with creatinine clearance values and with outcome in 131 critically ill surgical patients. There was a strong negative relationship between creatinine clearance and mortality. Of the 23 patients with a severe reduction of creatinine clearance (less than 20 mL/min), 17 died. In contrast, 23 of the 24 patients with a creatinine clearance of 100 mL/min or more survived. Urine output, BUN, and serum creatinine levels correlated poorly with creatinine clearance. A urine output of less than 30 mL/hr, a BUN level greater than 40 mg/dL, and a serum creatinine level greater than 2.0 mg/dL in all instances were associated with reduced creatinine clearances. However, more than half of all the patients with a normal urine output, BUN, or serum creatinine levels also had a reduced creatinine clearance.
mesh_terms: D001424:Bacterial Infections / Q000150:complications; D001806:Blood Urea Nitrogen; D006348:Cardiac Surgical Procedures / Q000401:mortality; D003404:Creatinine / Q000097:blood / Q000652:urine*; D006801:Humans; D007677:Kidney Function Tests; D011183:Postoperative Complications; D013514:Surgical Procedures, Operative / Q000401:mortality*
chemical_list: D003404:Creatinine