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HelpTest Code 710 Creatinine, Timed Urine
Additional Codes
ALAB: CRUT
PowerChart: Creatinine Urine Timed
MA Cerner: Urine Creatinine Timed
Test Method
MercyOne: Jaffe Rate; Beckman DxC700AU
MA: Kinetic Colorometric Method; Roche Cobas 6000
Specimen Requirement
24 hour urine collection is preferred.
Additional Specimen Collection Information
Collect all urine for the prescribed period. No preservative is required. Keep the urine chilled during the collection period and prior to testing. Label the specimen with patient name and two identifiers (patient ID number, DOB, etc.). Send entire urine collection to the laboratory. Indicate the collection time period. Store the urine specimen refrigerated and transport to the lab within 48 hours.
Performance
Testing is performed Monday through Sunday.
Routine: Typically assayed within 2 hours after the specimen arrives at the testing site.
Reference Values
24 Hour: 0.9-1.8 gm/24 Hours
<24 Hour: Not established. Results are subject to interpretation by the clinician.
CPT Code Information
82570 Chemistry: Creatinine, other source
Useful For
Urinary creatinine, in conjunction with serum creatinine, is used to calculate the creatinine clearance, a measure of renal function.
LOINC Code Information
2162-6 Creatinine [Mass/Time] In 24 Hour Urine