FAQ's about marijuana testing.

Most frequent questions and answers

There are several tests for marijuana but there is not currently an instant drug test.  The most often used test is a blood test, but this is not an instant test; blood samples need to be tested in a lab which takes time.  Hound Labs in Oakland, California and Cannabix in Canada, have been working on a cannabis “breathalyzer for several years.  There also is a machine that will analyze saliva quickly that has been developed by Dräger.   The Dräger DrugTest® 5000 system claims to be a fast, accurate means of testing oral fluid samples for drugs of abuse, such as amphetamines, designer amphetamines, opiates, cocaine and metabolites, benzodiazepines, cannabinoids, and methadone.

Interestingly, the Dräger website doesn’t mention cannabis, although some police departments in Michigan and Canada have been testing it.  One of the big problems is that it doesn’t work well in cold temperatures.  Do you think that will be a problem in Canada?

In summation, The current available  tests are a blood test and a saliva test. Two companies, Hound Labs in Oakland, California and Cannabix in Canada, have been working on a cannabis “breathalyzer” for several years.

There are several tests for marijuana but there is not currently an instant drug test.  The most often used test is a blood test, but this is not an instant test; blood samples need to be tested in a lab which takes time.  Hound Labs in Oakland, California and Cannabix in Canada, have been working on a cannabis “breathalyzer for several years.  There also is a machine that will analyze saliva quickly that has been developed by Dräger.   The Dräger DrugTest® 5000 system claims to be a fast, accurate means of testing oral fluid samples for drugs of abuse, such as amphetamines, designer amphetamines, opiates, cocaine and metabolites, benzodiazepines, cannabinoids, and methadone.

Interestingly, the Dräger website doesn’t mention cannabis, although some police departments in Michigan and Canada have been testing it.  One of the big problems is that it doesn’t work well in cold temperatures.  Do you think that will be a problem in Canada?

In summation, The current available  tests are a blood test and a saliva test. Two companies, Hound Labs in Oakland, California and Cannabix in Canada, have been working on a cannabis “breathalyzer” for several years.

 

How long you are impaired (and, thus, shouldn’t drive) depends upon a number of factors, including how much cannabis you consumed, what the THC content of the cannabis is, how frequently you use cannabis on a regular basis, and whether you have used it in the previous 3 days.

People who use consume cannabis on a daily basis can develop “tolerance.”  However, our research indicates that tolerance to cannabis does not necessarily mean, “no effect.”  It means the amount needed to reach a specific level of “high” increases, and the “altitude” of the high is lower and last less time.

THC is not psychoactive.  When cannabis is consumed, the Delta-9 THC molecule is “de-carboxylated” (carbon molecules are removed) when heated.  The metabolite of THC, 11-OH-THC, is what is psychoactive.  Because the THC molecule is “lipophilic” (an affinity for fat cells), traces of cannabis use can remain in for days, weeks or even months following use.

How long these molecules stay in your body depends upon a person’s frequency of use.  Some reports indicate that using cannabis more than once per week can cause THC and its metabolites to build up in the body.  The more fat cells a person has, the greater storage capacity there is for cannabis molecules.  Some studies also suggest that exercise can increase the rate of release of cannabis molecules from the body.

If your policy is “zero tolerance” for any employee using cannabis at work or outside of work, a blood test for THC will reveal past use.  Existing drug tests, however, do not measure impairment, just past use, since evidence of cannabis use can remain in the body for weeks or even months after impairment from cannabis has passed. So, if you are concerned with employees being impaired at work because of any drug use, alcohol included, the DRUID® app is what you need to use.