Hair drugs of abuse testing offers up to a 90-day window for detection of drug use1 prior to the test date and a convenient collection process that can be performed almost anywhere.
Initial screening tests performed by enzyme-linked immunosorbent assay (ELISA) with confirmation of presumptive positive screens by gas chromatography/tandem mass spectrometry (GC/MS/MS) or liquid chromatography/tandem mass spectrometry (LC/MS/MS). Results for specimens that screen negative for all drugs are generally available within 48-72 hours after specimens are received at the laboratory. Results for confirmation testing of presumptive positive screens are usually available within an additional 72 hours.
- Marijuana metabolite
- Cocaine and metabolites
- Opiates (codeine, morphine, 6-acetylmorphine)
- Phencyclidine (PCP)