Preferred Specimen(s) 10 mL Urine
Instruction Collect urine sample without preservative
Transport Container Plastic, leakproof container
Transport Temperature
- Ambient 7 days,
- Refrigerated 14 days
Reject Criteria Sample coating preservative
Methodology Enzyme Immunoassay
Clinical Significance The presence of drug may be indicative of therapeutic use or of substance abuse, depending on the drug. The time period for which drug can be detected is variable and dependent on a large variety of factors. Some of these factors include: (1) Amount of drug ingested; (2) individual metabolism; (3) dilution of the urine.