Added: Julie Lodge - Date: 02.07.2021 15:54 - Views: 22187 - Clicks: 7338
Essentially, it means separating the positives from the negatives. In drug and alcohol testing, a cut-off level is a level at which the concentration of a substance in your breath, urine, or saliva, indicates a safety risk. So if your sample tests below the cut off level, your test has a negative result, and if your sample is equal to or above the cut-off, your test result is positive unless otherwise noted by a Medical Review Officer.
These cut-off levels are deed to identify a level which indicates a safety risk to the donor, their fellow workers, and their working environment. The most common and simple example of a cut-off level is the 0. If you take a breathalyzer and blow 0. So when it comes to occupational drug and alcohol testing, similar standards have been put forth for alcohol, as well as cannabis, cocaine, opioids, phencyclidine, and amphetamines. These cut-off levels are set by corporate policies and resulted by a laboratory, while point-of-collection devices all come with predetermined screening levels.
How are cut-off levels defined?
The cut-off levels for drug and alcohol tests, whether for urine or oral fluid testing, are determined by companies keeping in mind the capabilities of testing laboratories and available point-of-collection devices. Department of Transportation DOT  concentration limits. There are a of reasons these levels are set the way they are.
First, to set a reasonable standard to ensure employees are safe and fit for duty. Second, to eliminate the possibility of testing positive for second-hand exposure. Third, with a standard such as this, we are able to hold all donors to the same expectations.
Each lab-based urine or lab-based oral fluid test is deed to have two cut-off levels. Cut-off levels for each substance are slightly lower than they were in the screening test and provide a quantitative level of the sample to be sent to a Medical Review Officer to be assessed.
The Canadian Model and U. DOT provide recommended cut-off levels for the following substances and provide a cut-off level for both screening tests and lab confirmation tests:.
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What are the cutoff levels for non-DOT drug tests?