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CREATININE, 24 HOUR URINE
Test CodeLAB712
CPT Codes
81050, 82570
Preferred Specimen
24 hr. urine collection
Instructions
TO COLLECT A 24-HOUR URINE SPECIMEN: At the hour selected to start the 24-hour period, have the patient urinate and discard. From that time collect all urine passed in a clean container and transfer immediately to this bottle. DO NOT HAVE PATIENT URINATE DIRECTLY INTO THE BOTTLE. Have the patient pass the last urine at the end of the 24-hour period and add this into the bottle. The container must be kept refrigerated at all times during the 24-hour collection.Collect urine in a plain 24 hour urine container. Refrigerate during the collection.
Transport Container
24 hr urine collection container, plain (no preservative)
Transport Temperature
Keep container refrigerated during 24 hour collection
Methodology
Creatinine, urine: enzymatic colorimetric assay
24 Hr. Creatinine: Calculation
Setup Schedule
Set Up:Daily
Reference Range
| Creatinine, 24 hr urine | Calc | 1.0-2.0 g/24hr |
| 24 hr total urine volume | 1000-2500 mL | |
| Creatinine, urine | Enzymatic colorimetric assay | mg/dL |
Performing Laboratory
GBMC Chemistry
