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Urine Screening Methodology

In order to determine if a urine specimen is negative or positive for drugs of abuse, all specimens are initially screened by an enzyme immunoassay (EIA) procedure. Specimens that yield an EIA response below the specified cut-off are reported with a specific level. Any specimen that shows an EIA response at or above the specified cut-off is considered “presumptive positive” for a particular drug or drug class. Based on your agency’s account, presumptive positive specimens may be confirmed by a second method prior to reporting positive results.

 

  • Drugs of Abuse
  • Amphetamine
  • Methamphetamine
  • Barbiturates
  • Benzodiazepines
  • Buprenorphine
  • Cocaine Metabolite
  • Ecstasy
  • Ethanol
  • EtG
  • Methadone
  • EIA Cut-off
  • 500 ng/mL
  • 500 ng/mL
  • 200 ng/mL
  • 200 ng/mL
  • 5 ng/mL
  • 100 ng/mL
  • 500 ng/mL
  • 100 ng/mL
  • 500 ng/mL
  • 250 ng/mL
  • Drugs of Abuse
  • Opiates
  • Oxycodone
  • Phencyclidine
  • Propoxyphene
  • THC (cannabinoids)
  • 6-AM (Heroine)
  • Tricyclic Antidepressants
  • Tramadol
  • Gabapentin
  • EIA Cut-off
  • 300 ng/mL
  • 100 ng/mL
  • 25 ng/mL
  • 200 ng/mL
  • 50 ng/mL
  • 250 ng/mL
  • 300 ng/mL
  • 200 ng/mL
  • 25 ng/mL