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Articles > Debates on urine drug testsDebates on urine drug tests Systematic cheating and questionable accuracy of the urine screens lead to the debate on their efficacy. False positive results occur quite often, and it is reported that urine specimen adulteration and substitution happen frequently; and both of these methods of avoiding positive drug tests’ results are effective. Of course most testing facilities check the specimens for adulteration, but they can’t keep pace with all possible forms of adulterants available on the market. Contemporary adulterants classified into two classes. First one is classic adulterants such as household chemicals and other substances (e.g. white vinegar, liquid drain cleaner, chlorine bleach, sodium nitrite, pyridinium chlorochromate and glutaraldehyde). Second class of adulterants comprises commercial adulterants. One can purchase them via the Web, from certain stores or through magazine advertisements. There are such famous brand names as Clean-X, Stealth, Urine Luck version 6.3, Instant Clean, Purafyzit, Klear, UR’n Kleen and Krystal Kleen. Some commercial adulterants are actually nicely packaged classic adulterants. Urine Luck 6.3 is hydrofluoric acid; it is oxidant and is not generally available in the classic adulterants class due to its corrosive nature. Stealth is an enzyme system, so hydrogen peroxide is produced. To dilute the concentration of narcotic metabolites in the urine specimen below detectable level some people drink a lot of water. However clear specimen could be rejected and a person will be retested due to the urine being too dilute. Despite the practice of waterloading, vitamin B intake makes urine bright yellow. Vitamin B3 (niacin) is often used in fast detox systems for its "flushing" effect. Adulteration tests look for the presence of "detox" products. The specific properties of the urine are explored to verify if the sample is abnormal. Specific gravity and pH of the urine are tested along with creatinine level, glutaraldehyde, specific gravity, bleach, nitrite, and pyridinium chlorochromate.
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