Skip to Content
UW Health SMPH
American Family Children's Hospital

UW Hospital and Clinics Lab Test Directory

Test Name: Creatinine, Urine, Random

Test Code(s): RCRET / UCRR

CPT Code(s): 82570

Methodology: Enzymatic; IDMS-traceable

Days Performed: Daily, 24 hours.

Turnaround Time: Stat: 1 hour.
Routine: 4 hours.

Specimen Requirements

Specimen: Random urine

Collection Instructions: Collect random urine.  No preservative required.  

Collection Container: Preferred: Sterile screw cap container

Collection Volume: Preferred: Entire collection
Pediatrics: Entire collection

Sample Analyzed: Urine aliquot

Volume Required: Preferred: 1 mL
Pediatrics: 0.4 mL

Specimen Processing: Refrigerate.

Specimen Transport: Transport specimen to UWHC Core Laboratory (B4/220). Transport with coolant pack if coming from outreach location.

Stability: Ambient: 5 days
Refrigerated: 5 days
Frozen: okay


Results reported in mg/dL.

Additional Information:

Results calculated only on creatinine clearance packages.

Back to Lab Test Directory Index