Drug Test Information:
Urine Drug Test FAQs
Results of a urine test show the presence or absence of specific drugs or drug metabolites in the urine. Metabolites are drug residues that remain in the system for some time after the effects of the drug have worn off. A positive urine test does not necessarily mean the subject was under the influence of drugs at the time of the test. Rather, it detects and measures use of a particular drug within the previous few days.