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Creatinine Clearance, Urine
Test Code3220
Preferred Specimen
24-hour urine. Specimen must be refrigerated during collection. AND plasma separator tube or serum separator tube, collected within 48 hours of initiating urine collection.
Minimum Volume
Refrigerated.
Instructions
Transfer one 3 mL aliquot from a well-mixed 24-hour collection (Min: 0.5 mL) AND 1 mL serum or plasma (Min: 0.2 mL) to individual ARUP Standard Transport Tubes. Record total volume and collection time interval on transport tube and test request form.
Transport Temperature
Refrigerated.
Specimen Stability
Serum: (after separation from cells) Ambient: 4 hours; Refrigerated: 1 week; Frozen: 6 monthsUrine: Ambient: 24 hours; Refrigerated: 4 days; Frozen: 6 months.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Random urine collections.
Methodology
Quantitative Spectrophotometry/Enzymatic
Setup Schedule
Sun-Sat
Report Available
Within 24 hours
