Geisinger Medical Laboratories Test Catalog

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CREATININE, 24 HOUR URINE

SPECIMEN COLLECTION
Test code:
CRET24
Specimen type:
24-hour urine
Collection container:
Specimen Required:
5 mL aliquot of 24-hour urine, as above; minimum 5 mL
Special notes:
Mix well. Estimate total collection volume from 24-hour urine container. Remove required aliquot. Record total volume on both aliquot tube and request slip (if applicable).
Patient preparation:
None.

SPECIMEN PROCESSING
Transport temperature:
Refrigerated (preferred). Room temperature or frozen specimen also acceptable.
Specimen stability:
Room temperature: 2 days. Refrigerated: 6 days. Frozen: 6 months.
Rejection criteria:
A complete 24-hour urine collection is required. Any other specimen is unacceptable.

TEST DETAILS
Reference range:
Male 1-2 gm/24 hours.
Female 0.8-1.8 gm/24 hours
Critical Values/Courtesy Alerts:
None.
Additional information:
None.
CPT code(s):
82570
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Creatinine - 24-hour urine, 24-hour total volume.
Methodology:
Spectrophotometric (Colorimetric)
Clinical Significance:
Creatinine is the product of creatine metabolism. Creatinine is measurement of renal function.
Doctoral Director Review:
Jay Jones Ph.D.     Review Date: 02/04/2014

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Larry Quinton
Frequency: Daily, Monday - Sunday
Performed stat? N

Geisinger Bloomsburg Hospital

Performing laboratory: Geisinger Bloomsburg Hospital
Technical Lead: Maureen Phillips  
Frequency: Daily    
Performed stat? Y