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Specimen Collection Manual and Test Catalog

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CREATININE, 24 HOUR URINE

Geisinger Epic Procedure Code:  LAB2095    Geisinger Epic ID:  14342

SPECIMEN COLLECTION
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).



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 interval: 

Male 1-2 gm/24 hours. 
Female 0.8-1.8 gm/24 hours


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: 
Enzymatic
Synonyms: 

CRET24


Clinical significance: 

Creatinine is the product of creatine metabolism. Creatinine is measurement of renal function.


Doctoral Director(s): 
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Review Date:  12/27/2024

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