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Creatinine, Timed Urine; Creatinine, Urine, 24 hour

Container A or Red/Yellow

Container A or

Red/Yellow

Test ID   LAB385
EPIC Order
   CREATININE, URINE, TIMED
CPT Code(s)   82570
Group/Individual Test   Group
Laboratory   Core Laboratory
Tube Station   Deliver directly to laboratory
Specimen Routine: 24 hr urine, Container type "A"/refrigerate. Red/Yellow (acetic acid) containers are also acceptable. 
Stability
Room temperature: Not Recommended
Refrigerator: 8 days
Frozen: 37 days
Availability 24 hr/day
Turnaround Time   4 hours
Reference Range Normal: Females: 600-1800 mg/day
    Males:  800-2000 mg/day
Comments
  • Obtain container "A" From Central Distribution or Red/Yellow container from the laboratory.
  • Refrigerate during collection
  • Provide start/stop times
  • Note: if collection duration is not 24 hours, the Creatinine mg/day will not be calculated in the LIS
  • Total volume will be reported. 

Reviewed by J. Carr on January 05, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514