Although there are several options for drug tests, DOT regulated drug tests must use urine samples.
Can a hair follicle test go back 6 months?
When tested, each centimetre of hair therefore reflects one month’s history of drug use (or non-use). This is why hair strand testing is able to provide such a large window of detection, assessing drug use as far back as 6 months.
Do they test for drugs in a standard blood test?
Do drugs show up in routine blood tests? A toxicology test (“tox screen”) would need to be performed to show the presence of drugs or other chemicals in your blood. A tox screen can be used to check for one specific drug or up to 30 drugs at once.
How far back does a dot urine drug test go?
The amount of follow-up testing you receive is determined by a Substance Abuse Professional (SAP) and may continue for up to 5 years. This means the SAP will determine how many times you will be tested (at least 6 times in the first year), for how long, and for what substance (i.e. drugs, alcohol, or both).
What happens if you test positive on a DOT drug test?
Once an employer has received a verified positive drug test result, the employer must immediately remove the employee from DOT covered safety sensitive functions.
What does a non DOT drug test test for?
DOT testing can reveal the use of alcohol, opiates, marijuana, cocaine, PCP, amphetamines, and methamphetamines. Non-DOT testing looks for the presence of barbiturates, methadone, quaaludes, benzodiazepines, and propoxyphene.
What is the cutoff level for a hair drug test?
Cutoff levels are the detection thresholds for compounds that are set on the testing instrumentation. To use the cannabinoid example, our screening cutoff level for the cannabinoid drug class in a hair specimen is 1 pg/mg.