Passing a Hair Follicle Drug Test
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What a Hair Follicle Drug Test is how a Hair Follicle Drug Test works and Passing a Hair Follicle Drug Test
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[edit] What is a Hair Follicle Drug Test?
A hair follicle drug test generally involves the donor giving a sample of hair to the drug testing entity to test for drug use. After collection of hair from the donor, the hair follicle drug test sample is either tested on-site or sent out to a lab for more exhaustive hair follicle drug testing. On-site hair follicle drug testing provide qualitative results, and when supplemented with laboratory-based confirmation hair follicle drug tests, can be defended in a court of law.
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A hair follicle drug test is quite accurate and can go back normally 3 months (6 months or longer possible with specialty tests), showing any drugs of abuse used in the detection window. As hair grows out, any drugs used are encased in the hair shaft, so the longer the hair, the longer back in the individual's drug history the lab can detect. Accredited hair drug testing labs, however, only use hair within about 2.5–4 cm of the scalp, and discard the rest. With head hair each 0.5 inch (1.27 cm) corresponds to about 30 days. This limits the detection history to about 90 days, depending upon the rate at which the individual's hair grows. Some people attempt to circumvent this through shaving their heads. In the absence of the required amount of hair on the scalp, body hair can be used as an acceptable substitute.
For more information to Passing a Hair Follicle Drug Test see Hair Drug Test
[edit] Passing a Hair Follicle Drug Test
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