The screening cut-off levels on our tests are consistent with those of SAMHSA.
Amphetamines—————-1000 ng/ml
Barbiturates———————300ng/ml
Benzodiazepines—————300 ng/ml
Cocaine————————-300 ng/ml
Marijuana————————50 ng/ml
Methadone———————300 ng/ml
Methamphetamine———–1000 ng/ml
Opiates————————2000 ng/ml
Phencyclidine——————–25 ng/ml
Tricyclic Antidepressants—-1000 ng/ml
