The Q.E.D. Saliva Alcohol Test (the only DOT Approved and CLIA waived alcohol saliva test) is an on-site, low-cost alternative to breath or blood testing. The test is easy to operate and provides quantitative results as accurate as a blood test. The Q.E.D. test serves customers in workplace testing, criminal justice and in hospital, emergency, psychiatric and occupational health departments. The test is designed to be administered by professional users. The Q.E.D. test is to be administered by a certified Screening Test Technician or trained professional.
The test is run on saliva by swabbing the mouth and then pressing the saturated swab into the red center. It will run like a thermometer, with both a control line and a line indicating the level of alcohol in the system of the individual detecting the blood alcohol level of an individual up to .15.
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1. What does a positive reading look like with the Q.E.D. test?
When a Q.E.D. test result is positive, a dark purple color bar forms within the measurement scale. This color is distinctly darker than the pink or orange color seen as the sample fills the device. The color bar on a positive test -- the same color seen in the QA Spot -- develops in 2 minutes.
2. How hard should I press down with the Q.E.D. applicator?
Gently apply slow and even pressure when placing the swab in the entry port. Too much pressure can jam the test. For best results, gently twist the collector into the entry port until the cotton touches the red filter pad and then begin pressing.
3. What does the Clinical Laboratory Improvement Act (CLIA) waiver mean for work site testing?
Because work site testing is considered forensic testing, CLIA regulations do not apply. The waived status for the Q.E.D.® Saliva Alcohol Test under CLIA '88 makes testing easier in hospitals, rehabilitation centers and treatment facilities where our test is used as an in-vitro diagnostic tool.
4. Does the Q.E.D. test measure residual alcohol in the mouth or is it measuring the alcohol within the entire body (blood stream)?
Beverage alcohol (ethyl alcohol) is absorbed directly and unchanged into a person's body and is evenly distributed throughout the blood stream and other bodily fluids, including saliva. The Q.E.D. test measures the amount of alcohol in bodily fluids, commonly called blood-alcohol concentration, or BAC. Residual alcohol in the mouth just after a person takes a drink is quickly absorbed, swallowed, or evaporated, and a person's mouth is "clear" of residuals 10 minutes after eating or drinking.
11. Will the Q.E.D. test react with ketone often found in the saliva of diabetic patients?
No. Unlike breath analyzers and other saliva tests, the Q.E.D.® test is specific to ethyl alcohol and will not cross-react with acetone and ketone produced by diabetic patients.
12. Will the Q.E.D. device work if it is stored at temperatures outside the range on the packaging?
Storing and using Q.E.D. tests at room temperature (15-30ºC, 59-86ºF) ensures optimal performance and a full shelf life. However, the Q.E.D.® test will work fine if exposed to temperatures outside that range for limited periods. The Q.E.D. device was tested under a wide range of temperatures and storage conditions -- simulating the inside of a vehicle glove box on a hot summer day (about 120ºF) and the lonely cold of North Dakota in January (about 0ºF). In all cases, the test performed as it should. Before using a Q.E.D. Saliva Alcohol Test exposed to extreme heat, allow the device to cool to room temperature; if the Q.E.D. device is exposed to extreme cold, put it into a pocket to warm it up.
13. How can companies using the Q.E.D. test in very remote areas comply with the DOT's requirement that confirmation tests on positive screening tests must be conducted within 30 minutes?
The DOT will accept results of confirmation tests conducted more than 30 minutes after a positive screening test. Look to 49 CFR Part 40 section 40.65, paragraph (b). The DOT added a sentence which directs the Breath Alcohol Technician (BAT) to simply explain "why?" if a confirmation test is done more than 30 minutes after a screening test. This is not a fatal flaw.
14. Why should I buy the Q.E.D. Saliva Alcohol Test if I need an Evidential Breath Testing (EBT) to confirm positive test results?
The Q.E.D.® test is much less expensive to operate than a breath test, unless you conduct a very high volume of tests in a central location. By and large, each test done on saliva instead of breath saves money. Plus, performing two independent tests is more legally defensible on the rare occasion an employee does test positive for alcohol.