What is the difference between a DOT and non-DOT test?

DOT-regulated testing must adhere to the federal rules detailed in 49 CFR Part 40, while non-DOT-regulated employers may choose to establish programs that mirror those requirements and even exceed them. The DOT takes jurisdiction for the interstate trucking industry when vehicles transporting hazardous materials are traveling public roads, whether interstate or intrastate. DOT drug testing is most used for truck drivers crossing the US border.

What is the difference between a Lab-based test and an Express (POCT) test?

Point of collection (POCT) urine test offers instant/same-day results. Lab-based tests are sent to a lab for testing and takes approximately 3-5 working days for results to come back. Non-negative tests take longer as they are reviewed by a Medical Review Officer.

How long does a drug stay in your system?

Many drugs stay in the system from 2 to 4 days, although chronic use of marijuana can stay in the system for 3 to 4 weeks or even longer after the last use. Many variables may affect the amount of time that a drug remains detectable in the urine or other biological samples, including the type, how much is used, frequency of use, your hydration levels, amount of physical activity, body mass, metabolic rate, drug tolerance, weight, medical conditions, gender, and other variables.

How long does alcohol stay in your system?

Alcohol detection tests can measure alcohol in the blood for up to 6 hours; in breath, urine, and saliva for 12 to 24 hours, and hair for up to 90 days.

How far back can a drug test detect drug usage?

There are many factors that can make these detection windows longer or shorter. Drugs in hair may be detectable for up to 90 days or more [months-years], whereas drugs in urine are generally detectable for one to seven days (or longer in chronic users) [days-moths], and in oral fluid detects frequent use; from five to 48 hours [hours-days].

What does a “non-negative” result mean?

A non-negative is not the same as a positive specimen. The term implies that traces of a particular drug were present in the sample, hence, results are inconclusive or that an additional confirmation test is required. The final result is always the one confirmed in a certified laboratory using a gold standard technology. A positive result indicates that a drug was detected at or above the reference range for that test. A negative result indicates that the drug wasn’t detected or was below the threshold for a positive test result.

How do I prepare for my appointment?

You’ll need to provide government-issued photo identification. A picture of your ID on your phone will not be accepted. You will be required to provide a freshly voided urine sample, and it is best to wait at least 20 minutes after eating or drinking before alcohol testing. Alcohol remaining in the mouth, or even excess saliva, may interfere with testing. This includes alcohol-based mouthwash or similar products.