Saliva drug screen / Oral fluid-based drug screen

COC/Cocaine, THC/Marijuana, Saliva Drug Testing No Comments »

Saliva drug test / oral fluid-based drug tests can generally detect use during the previous few days. Saliva or oral fluid based drug tests are becoming more prevalent because of their convenience and the fact that they can not be adulterated. Furthermore, on-site oral based tests in particular enable the implementation of random drug testing programs, proven to be the most effective type of drug screening. Oral fluid based tests are as accurate as urine and can be obtained from quality suppliers in the United States. Testing is usually performed by employers, for either random, post-accident, reasonable suspicion, return-to-duty or pre-employment drug testing. Oral fluid based testing most closely mimics results found with blood and is preferable for detecting on-the-job drug use or in post-accident applications in this case because the degree of intoxication can be approximated based on the amount of substance in the blood. The Victorian Police in Australia are also using random saliva drug tests to detect drivers under the influence of amphetamines and cannabis. South Australian police were also given the power to drug-test drivers from 2006.

Detection in saliva tests begins immediately upon use:

  1. Marijuana and Hashish (THC): 1 hour after ingestion, up to 24 hours
  2. Cocaine (including crack): From time of ingestion for 48 to 72 hours
  3. Opiates: From time of ingestion for 48 to 72 hours
  4. Methamphetamine and Ecstasy (MDMA, “Crank,” “Ice”): From time of ingestion for 48 to 72 hours
  5. Benzodiazepines: From time of ingestion for 48 to 72 hours

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Urine drug screen

COC/Cocaine, THC/Marijuana, Detox Pills, Detox Drinks, Urine Drug Testing No Comments »

Also known as urinalysis, this procedure requires that one provide a sample of urine. Either a test card is used on site for immediate results, or the sample is sent away to a lab to undergo gas chromatography/mass spectrometry (also known as GCMS), high performance liquid chromatography or immunoassay analysis. Sample substitution or adulteration have become a significant issue in the United States due to the prevalence of synthetic and/or drug-free urine and a wide range of adulterants on the internet. Some people attempt to defeat a urine test by drinking copious amounts of water, however, a sufficiently diluted sample may be rejected due to its clear color. Samples that are too clear may be flagged and tested for specific gravity. If the sample fails the specific gravity test, the sample is rejected and the dilution is reported to the entity that ordered the test. Some diuretics and herbal extracts, such as caffeine and goldenseal, respectively, are marketed as a quick “detox” from controlled substances, but their efficacy is questionable. Some types of urinalysis can even detect the use of these “detox” products such as urine detox drinks and urine detox pills. One of the methods to test for adulterants is to add some amount of an actual drug to a small portion of the sample and then retest that portion. If a masking agent is present in the urine, the resulting drug test will have a negative result despite the fact that a drug was added. This situation is also usually reported to whomever ordered the test.

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