Virginia Gov Portal Skip to main content
Division of Consolidated Laboratory Services

DRUGS OF ABUSE IN URINE (DAU) CONFIRMATION

Laboratory: Immunology/Virology

Test Description: The procedure is a Standard Operating Procedure (SOP) for the confirmation of routine drugs in human urine by solid phase extraction (SPE) and gas chromatography/mass spectrometry (GC/MS).

Order Approval Required? Yes, via Beverly Richardson (head of drug testing for the Department of Corrections)

Specimen Type: Urine

Collection Container: Collected in Plastic (Polypropylene, polycarbonate, polyethylene) Leak-Proof Container

Optimal Volume: 90 ml is preferred; 5 ml is min

Collection Guidelines: Keep the specimen cup tightly closed to prevent the evaporation of any alcohol in the sample. Specimens may be stored unrefrigerated for up to 7 days following collection.

After 7 days, specimens must be stored frozen at -20˚C or colder.

Storage Container: Sterile Leak-Proof Container -20 freezer

Storage Instructions: If not analyzed immediately, specimens may be stored unrefrigerated for up to 3 days; after 3 days samples must be frozen

Transportation Instructions: Transport urine at 2-8°C to prevent alcohol evaporation; Samples should be shipped in locked coolers

Test Methodology: Solid phase extraction, gas chromatography/mass spectrometry

Additional Information: Must have Division of Consolidated Laboratory Services (DCLS) or Department of Corrections (DOC) approval to perform test

Causes For Rejection: Quantity not sufficient for testing

Possible Results: Positive, Negative