UScreen Drug Test Cut-Off Levels and Detection Times
Drug | Cut-Off Level | Minimum Detection Time * | Maximum Detection Time * |
---|---|---|---|
Marijuana (THC) | 50 ng/ml | 2 hours | Up to 5+ days |
Cocaine (COC) | 300 ng/ml | 1 – 4 hours | 2 – 4 days |
Amphetamine (AMP) | 1000 ng/ml | 2 – 7 hours | 2 – 4 days |
Methamphetamine (MET) | 1000 ng/ml | 2 – 7 hours | 2 – 4 days |
Morphine (MOP) | 300 ng/ml | 2 hours | 2 – 3 days |
Morphine (2000) Opiates | 2000 ng/ml | 2 hours | 2 – 3 days |
Methylenedioxymethamphetamie (MDMA) | 500 ng/ml | 2 – 4 hours | 2 – 4 days |
Barbiturate (BAR) | 300 ng/ml | 2 – 4 hours | 1 – 3 weeks |
Benzodiazepines (BZO) | 300 ng/ml | 2 – 7 hours | 1 – 4 days |
Methadone (MTD) | 300 ng/ml | 3 – 8 hours | 1 – 3 days |
Oxycodone (OXY) | 100 ng/ml | 1 – 3 hours | 1 – 2 days |
Phencyclidine (PCP) | 25 ng/ml | 4 – 6 hours | 7 – 14 days |
Tri-Cyclic Antidepressants (TCA) | 1000 ng/ml | 8 – 12 hours | 2 – 7 days |
Buprenorphine (BUP) | 10 ng/ml | 4 hours | 1 – 3 days |
This assay provides only a preliminary test result. A more specific alternative chemical method must be used in order to obtain a confirmed analytical result. Gas chromatography/mass spectrometry (GC/MS) is the preferred confirmatory method. Clinical consideration and professional judgment should be applied to any drug of abuse test result, particularly when preliminary results are positive.