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Test Code CREATININE CLEARANCE 24 HOUR URINE CREATININE CLEARANCE 24 HOUR URINE

Department

Chemistry

Specimen Type

Urine and Plasma or Serum

Method

Modified Jaffe Procedure

Container

Lithium heparin (green top) or No additive (red-top) and 24 hour urine container. Any preservative can be used, see 24 Hour Urine Collection Section

Special Requirements

Refer to 24 Hours Urine Collection / Creatinine Clearance. Patient’s height, weight and urine total volume required for calculation. Plasma or serum must be collected within 24 hours of urine collection.

Standard Volume

10ml

Minimum Volume

5ml

Pediatric Volume

N/A

Ship Temperature

Room Temperature

Stability Refrigerated

48 hours, urine; 7 days serum, or plasma

Stability Room Temp

urine-2 days; serum- 8 hours

Stability Frozen

N/A

CPT Code

82575

Days Test Set Up

Monday through Sunday

Group Components

Hour collected, weight, total volume, serum creatinine, urine creatinine, height, body surface area, creatinine clearance