Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

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Test Search:      Test Name: OR Test Code OR CPT Code:  


Test code:
Specimen type:
24-hour urine
Preferred 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).

Transport temperature:
Refrigerated (preferred). Room temperature or frozen specimen also acceptable.
Specimen stability:
GMC, GBH, GLH, GVML: Room temperature: 2 days. Refrigerated: 6 days. Frozen: 6 months.
GCMC: Room temperature: 8 hours. Refrigerated: 48 hours. Frozen: 3 months.
Rejection criteria:
A complete 24-hour urine collection is required. Any other specimen is unacceptable.

Reference interval:
Male 1-2 gm/24 hours.
Female 0.8-1.8 gm/24 hours
CPT code(s):
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.
Enzymatic (GBH, GLH, GVML)
Clinical significance:
Creatinine is the product of creatine metabolism. Creatinine is measurement of renal function.
Doctoral Director(s:)
Hoi-Ying Elsie Yu, PhD
Sheng-Ying (Margaret) Lo, PhD, DABCC    
Review Date: 02/27/2017

Performing Locations

Geisinger Medical Center

Performing laboratory: Automated Chemistry
Technical Lead: Mariana Moyer, Jared Shepherd
Frequency: Daily, Monday - Sunday
Performed stat? N

Geisinger Bloomsburg Hospital

Performing laboratory: Chemistry
Technical Lead: Robyn Stokes  
Frequency: Daily    
Performed stat? N

Geisinger Community Medical Center

Performing laboratory: Chemistry
Technical Lead: Ann Mack, Deborah Dempsey  
Frequency: Daily, all shifts    
Performed stat? N

Geisinger Lewistown Hospital

Performing laboratory: Chemistry
Technical Lead: Melissa Forsythe  
Frequency: All shifts    
Performed stat? Y

Geisinger Viewmont Medical Laboratories

Technical specialist: Joan Salijko    
Frequency: Daily    
Performed stat? N
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