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February 16th, 2011
Types Of Urine Drug Test
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Read about the types of urine drug test.
Drug testing is considered to be most effective way of discouraging the use of illegal drugs. Urinalysis is the most common method used when it comes to drug testing. When the drugs are introduced in the system by the abuser, they toxins pass through the liver and are metabolized. According to a research based company, metabolizing of the drug particles is a process by which the human system alters the drug chemically and converts them into the metabolites. Urine drug testing can thus detect the use of illegal drugs as the drugs are generally excreted through urination. Drug testing has however been a controversial issue and many argue that the test is direct invasion to the right of privacy of the donor. Parents criticize the tests in schools as the students have the right to be free from all unwarranted searches. Many are of the opinion that we should stop random drug testing in schools, however the tests are now constitutional and are mandated by the U.S. Supreme court.
There are two major types of urine drug test. The very common method is the Enzyme Multiplied Immunoassay Test (EMIT). This method uses certain antibodies that can react only with some specific drugs. If the drug metabolites are present in the urine specimen, then the antibodies get attached to them and the color of the specimen changes. This is how a positive result is determined. The second type is the Gas Chromatography-mass spectrometry (GC–MS). This type of urine drug test takes the specimen and vaporizes it that will help separate the metabolites from the sample. The metabolites will create a spectral peak that can be identified individually. This type is the accurate one and is used as a confirmatory test for positives.
Urine drug test is fast and requires only a few minutes to complete. However the results will be made available after a day or two depending upon the lab work load and the capabilities. If the test is positive, the sample will be shipped to an outside laboratory for confirming the result. This might delay the results. To pass a drug test, the only sure way is to stop doing drugs and make sure that you avoid them for the rest of your life!
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