What is a drug test for hair samples?

hair sample test sample sample is a type of test that uses a bundle of about 40 strands of hair from the scalp and molecule built into the hair shaft to control drug use. The laboratory can detect different types of drugs in drug users. The results are most accurate for drugs that have been in the user system for four to 90 days. Hair sampling drug test is one of the most effective drug tests for long -term drug use. Usually only the first 1.5 inches (about 3.81 cm) of hair is used for testing, providing a historical three -month indication of drug use. The hair is soaked in solvent to insulate the metabolites in the hair. This solution is then placed in a centrifuge that spins the solution for the separation of metabolites to be analyzed on the use of the medicine.Tream and are transmitted through the hair shaft. These molecules are captured in the outer layer of hair. As the hair grows, the drug molecules remain trapped until the hair is cut or otherwise destroyed. The more medication is used, theA larger amount of drug molecules is found in the hair.

The average hair sample test will test opiates, amphetamines, methamphetamines, ecstasy, cocaine, marijuana and PCP. There are more complicated tests that will look for up to 12 drugs, both prescription and illegal. These will be tested by the above -mentioned medicines and will also look for Vicodin®, OxyContin®, Percocet®, Lorcet®/Lortab® and Dilaudid®. These prescription drugs can be addictive and are commonly abused.

Shampoo, hair style products and hair dye usually do not affect the results of the drug sample drug test. Hair from other body parts can be used when there is not enough hair on the head. Some companies for drug screening will ask for armpits when the sample is not affected.

hair sample test can be performed in a medical office and laboratory, in a hospital or hair sample can be sent to a company thatspecializes in drug screening. Getting an e -mail package and having an external company to perform a hair sample test can be anonymous than letting a family doctor perform a test.