Testing Cutoff Levels

Clinical Panels (ng/ml) Forensic / Workplace Panels (ng/ml)
Analyte Screen Confirmation Analyte Screen Confirmation
Marijuana metabolites 50 5 *Marijuana metabolites 50 15
Cocaine metabolites 300 *Cocaine metabolites 300 150
Amphetamines 1000 *Amphetamines 1000
  • Amphetamine
 80 Amphetamine 500
  • Methamphetamine
 80 Methamphetamine 500
Opiates 300 *Opiates 2000
  • Codeine
 120 Codeine 2000
  • Morphine
 120 Morphine 2000
Phencyclidine (PCP) 20 3 *PCP 25 25
Barbiturates 300 80 Barbiturates 300 200
Benzodiazepines 300 80 Benzodiazepines 300 200
Methadone 300 50 Methadone 300 200
Methaqualone 300 Methaqualone 300 200
Propoxyphene 300 80 Propoxyphene 300 200
Ethanol 0.02 mg/dl Ethanol 0.02 mg/dl

*DOT Federal cut-off levels