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Drug Testing Guidelines

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         According to the guidelines of the National Drug Court Institute the following practical guidance is offered and is being adopted for drug testing purposes by the Medina County Adult Probation Department:
         Based upon recent scientific evidence, at the 20 ng/mL cutoff concentration for the detection of marijuana in urine (using the currently available laboratory-based screening methods) it would be uncommon for a chronic marijuana smoker to produce a positive urine drug test result longer than 21 days after the last smoking episode. 
         For a occasional marijuana smoker (or single event usage), at the 20 ng/mL cutoff for marijuana, positive urine drug test results for the single event marijuana use would not be expected to be longer than 7 days. 
Consequently, due to the above, it is reasonable to permit a 30 day abstinence baseline / detection window between marijuana tests.  Therefore, an offender should not test positive 30 days from their last marijuana test if they have abstained from marijuana use.  Individuals who continue to produce marijuana positive results beyond the established detection window maximums of 30 days (the scientific baseline) are subject to sanction for failing to remain abstinent during their probationary period. 
 
 
Drug Approximate Drug Times in Urine
AMPHETAMINES 1 - 4 days
BARBITURATES 1 - 7 days
BENZODIAZEPINES 1 - 7 days
CANNABINOIDS **
 
Detailed cannabinoid detection information available in NDCI Fact Sheet - Volume IV,                   Issue
2,
at 50 ng/mL cutoff:
up to 3 days for single event/occasional use up to 10 days for heavy chronic use
at 20 ng/mL cutoff:
up to 7 days for single event/occasional use up to 21 days for heavy chronic use
COCAINE METABOLITE 1 - 3 days
OPIATES 1 - 4 days
PHENCYCLIDINE (PCP) 1 - 6 days
ALCOHOL (as ethyl alcohol)
-
as alcohol metabolites EtG/EtS
variable, usually measured in hours
-
at the 500/100 ng/mL cutoff: 24-48 hours

©2018 - Medina County Adult Probation Department Terms of use.