Test Code 162 Creatinine Urine, Random
Additional Codes
ALAB: CRUR
PowerChart: Creatinine Random Urine
MA Cerner: Creatinine/Random Urine
Test Method
MercyOne: Jaffe Rate; Beckman DxC700AU
MA: Kinetic Colorometric Method; Roche Cobas 6000
Specimen Requirement
0.5 mL urine is required.
Additional Specimen Collection Information
Collect a random urine. No preservative is required. Label the specimen with patient name and two identifers (patient ID number, DOB, etc.). 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
Reference value not established for random specimens. 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. In a random specimen, urinary analytes can be normalized by the creatinine concentration to account for the variation in urinary concentrations between subjects.
LOINC Code Information
2161-8 Creatinine [Mass/Volume] In Urine