Hair drug tests have become very popular. This is due to the fact that the accuracy and effectiveness of this test is far better. In such tests, the time frame for detecting drug use is far greater as compared to saliva, urine and blood testing. So long as hair is long, it is possible to see presence of drug use for months and years. If you wish to study more about this, simply visit here: HOW TO PASS A SALIVA DRUG TEST.
The most common request for hair drug testing is the 3 month or 90-day drug history. What’s required here are 3-cm hair samples. There are other tests that would require at least 1 cm long hair to any length of hair sample. If the hair samples are longer than 3 cm, it would always be cut into sections that are almost 3 cm. This way, the sensitivity of the hair test is maintained.
The best method that determines whether or not the person is able to pass a hair drug test is to have no signs of drug use. How can it be done? The answer is pretty simple. When using drugs, the residues or the metabolites coming from the metabolized drugs would enter the bloodstream of a person. Once bloodstream passes the blood vessels beneath the scalp, the hair follicles will absorbed the residues. When the hair eventually grows, the hair will then become a record of the person’s drug use. As a matter of fact, a half inch of hair is equivalent to 30 days of record. Thus, cheating in order to pass hair drug test would be an impossible thing to do.
Usually, 50 strands are needed for this drug test. The required strands are taken from the crown. 50 strands of hair are little amount compared to the hundreds and thousands of hair strands in a healthy individual.
Hair drug testing has plenty of advantages. The first one is the fact that the drug detection time frame is longer. Moreover, sample collecting is easy and is not invasive. This is the most used test for parolees and probationers because it is easy to monitor whether or not they are still on drugs. This kind of test also holds the most ground in court cases.
It takes time for testers to pass drug testing in this method. This test will take more or less 10 days to completely analyse. This test is also not cheap. Still, this is a great drug testing option if we consider the advantages. If you need to study more about this, just click here: this website.