Saliva Drug Testing Saliva Tests for drugs is the least invasive and fastest way to test for current impairment from drugs in the workplace. As with any rapid test method including urine drug testing, a Non Negative result needs to be confirmed by a laboratory i n order to obtain a confirmed analytical result. Gas chromatography/mass spectrometry (GC/MS) or Liquid chromatography/mass spectrometry (LC/MS) are the preferred confirmatory methods. Here are some Questions and Answers regarding issues some have with Saliva Testing: Q: I had a candidate submit a negative test when the person appears to be under the influence of drugs or something else. A: There are a number of possible explanations: 1. I assume the candidate was tested for Alcohol 2. If the Saliva Test did not have a Benzodiazepine test strip this could be the cause. 3. There are very few substances or adulterants that can provide a false n...
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