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Read about THC hair follicle drug test!

There has been considerable increase in the number of people indulging in illegal drug use habits. This has made drug testing a primary requirement in many workplaces and organizations. Passing a drug test is a must if one is willing to get a job or participate in a sports activity. With the aid of various detox solutions, passing a drug test is no more a great deal. This has benefited the abusers a lot. Substituting old urine for drug test is a common tactics. But this involves a great risk. Scroll and find out about the THC hair follicle drug test.

Hair follicle drug test is the most accurate method for screening the presence of the drug and drug metabolites in the system. Hair analysis also tests for the five most commonly abused drugs by people. A hair follicle drug test follows the procedures and policies that are conformant to SAMHSA guidelines. This method of testing reflects the use of drugs over a period of approximately 45 days. A hair sample is cut from the root and weighed. The hair sample is then again cut into small pieces in order to create a more uniform sample. A portion of this is sent to laboratory for screening purpose.

Drugs are extracted from the hair sample in liquid form, which is initially screened by immunoassay technique using ELISA. If the sample is negative, no confirmatory test is performed. If results are positive, a request is made to conduct a confirmatory test by using another portion of the sample. The second portion is screened using a better technique that is GC/MC. The sample will be tested positive only if drug metabolites are above the cut off levels.

A hair follicle drug test works on the principle that as the level drug metabolites increases in the system they are encased in the hair. The longer the hair, the longer will be the history of drug use. On an average the human hair grows at the rate of 0.5 inch per month. THC is the only drug metabolite that is likely to stay for a longer time in the system. Hair tests are worse since our body stores THC in the hair. Hair tests can store these metabolites for weeks, months or even years. One needs to be very cautious if he is supposed to face a hair drug test!