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  • December 24th, 2010

    Drug Test Urine

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    Read about drug test urine.

    A urine drug test is designed to detect the presence of illegal drugs in the urine sample provided. Urinalysis is the most common method employed to test the employees in case of pre employment drug tests as well as random drug tests that are conducted in a workplace to ensure a drug free environment. It is preferred by many healthcare centers, urgent care centers and medical institutions.

    The urine drug tests screens the presence of five most commonly abused drugs namely:

    1. Cannabinoids (marijuana)
    2. Amphetamines (meth)
    3. Cocaine (crack, benzoylecognine, cocaine)
    4. Opiates (heroin, opium, morphine, codeine)
    5. Phenylcyclidine (PCP)

    Urine drug tests are performed by collecting the urine specimen in a specimen cup. It is however necessary to collect the midstream urine so as to pass a drug test. As you urinate, allow the first few drops to fall. Then you can collect the sample in a container. People believe that adulterating a urine sample is easy but this is not true. One might be asked to remove all the personal belongings and wear a gown provided by the authorities. You will be then sent to a room where you cannot have an access to water. Thus it is impossible to spike or switch the sample.

    If one tests positive, the result is then confirmed using a GC-MS (gas chromatography mass spectrometry) test. Not all the drug tests are accurate; some might register a false positive. This can be a case because of various interfering factors like food stuffs, medications, second hand smoke and over-the-counter medications. The GC/MS test can differentiate between a false positive result and an actual result.

    Although drug test using a hair sample is most accurate, employers still prefer urine drug tests. This is because it is relatively less expensive than any other testing procedure. Urine drug test is considered to be the most intrusive method of drug testing. The major disadvantage of urine drug test is that the results can be easily affected by abstaining from drug use for a few days. It can only detect the recent use of drugs. Many urine drug test kits have made it possible to conduct a drug test at home.

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