Specimen Collection Manual and Test Catalog
SPECIMEN VALIDITY TEST, URINE
Geisinger Epic Procedure Code: LAB3075 Geisinger Epic ID: 37654SPECIMEN COLLECTION
Specimen type:
Random urine
Preferred collection container:
Specimen required:
3 mL urine; minimum 1 mL.
SPECIMEN PROCESSING
Transport temperature:
Refrigerated (preferred). Room temperature also acceptable.
Specimen stability:
Room temperature: 2 days. Refrigerated: 14 days.
Rejection criteria:
Stability limits exceeded.
TEST DETAILS
Reference interval:
CPT code(s):
84311 Creatinine: > or = 20 mg/dL; 2 to 20 mg/dL with specific gravity 1.0030-1.0300.
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.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Creatinine, specific gravity when creatinine is < 20 mg/dL.
Methodology:
Enzymatic (creatinine)
Refractometer (specific gravity)
Refractometer (specific gravity)
Synonyms:
Validity testing, VALIDS
Clinical significance:
Specimen validity testing is performed to identify any tampering with specimens submitted for drugs of abuse testing.
Doctoral Director(s):
Review Date:
12/16/2024
Hoi-Ying Elsie Yu, PhD, DABCC, FADLM
Sheng-Ying (Margaret) Lo, PhD, DABCC
Sheng-Ying (Margaret) Lo, PhD, DABCC
Performing Locations