Knowing Hair Drug Testing
The popularity of hair drug is rising. This is due to the fact that the accuracy and effectiveness of this test is far better. Unlike blood, saliva and urine drug testing, hair drug tests can detect drug use for a much longer time frame. So long as hair is long, it is possible to see presence of drug use for months and years. If you want to find out about this, simply go here: pass urine 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 is it determined? The answer is pretty simple. Every time a person takes drugs, the bloodstream would carry the metabolized residues of the drug. When the bloodstream enters the scalp, some of the residue or chemicals would remain on the hair follicles. When the hair eventually grows, the hair will then become a record of the person’s drug use. For every half inch, the hair will have a record of 30 days. Therefore, it’s impossible to cheat just to make sure that the person will pass hair drug test.
In a hair drug test, about 50 hair strands are required. These strands are usually taken from the person’s crown. Considering the huge number of hair strands a healthy person would have, 50 hair strands are nothing much.
Hair drug testing has plenty of advantages. As mentioned above, the detection time for drug use is much longer in this method. Collecting the samples is also easy and isn’t 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 is due to the fact that 10 days are needed for a complete analysis. This is also an expensive drug test. If you look at the advantages, these downsides are still nothing. To be able to read more about this, simply click here: this website.
