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Creatinine Clearance (Corrected)
Test Code902251
CPT Codes
82575
Preferred Specimen
1 mL serum collected in a serum separator tube, and
10 mL of 24-hour urine collected without preservatives in a 24-hour urine container (refrigerated during collection), submitted in a plastic, leak-proof container
10 mL of 24-hour urine collected without preservatives in a 24-hour urine container (refrigerated during collection), submitted in a plastic, leak-proof container
Minimum Volume
0.5 mL
Instructions
Both serum and urine specimens must be submitted simultaneously for analysis. The serum specimen must be drawn at some time during the 24-hour urine collection. Please specify total 24-hour urine volume and the patient's height and weight (to calculate the body surface) on the request form.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 5 days
Refrigerated: 5 days
Frozen: Not established
Refrigerated: 5 days
Frozen: Not established
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly icteric serum • Anticoagulants other than heparin
Methodology
Colorimetric
Setup Schedule
Monday-Sunday All Shifts Report available: Next Day
Reference Range
See Laboratory Report
