Drug testing through the examination of hair follicles can be used to screen candidates and employees for the presence of recreational or prescribed drugs. It is also possible to use it after an accident or incident to determine whether or not the individual was under the influence of narcotics at the time of the incident.
For a hair follicle test to be accurate, a sample of the subject's hair must be taken from the forehead and then sent to a laboratory for analysis. It can test for a wide variety of substances and metabolites of drugs. Head hair is the sample collected most of the time for use in a hair follicle drug test; however, body hair can also be collected. In most cases, the samples are taken as close to the scalp as is humanly feasible and must be at least a half-inch long. A test performed on hair follicles is more accurate than a test performed on urine because metabolites of drugs can be found in the hair for weeks, months, or even years after the individual has stopped using the substance. Employers frequently request a drug test performed on their employees' hair follicles, particularly for positions requiring employees to be physically active. It also can be used as part of an employer's random drug testing procedure. A drug test performed on the hair follicles can identify a wide variety of drugs, including legal and illegal substances like marijuana. Because it can also identify a person's use within the previous ninety days, it is an excellent choice for drug testing in the workplace. It is also frequently used as a test ordered by the judge. The simple answer to your question is "yes," and the fact that the hair on your scalp grows quicker than the hair on the rest of your body supports this statement. One of the reasons samples of hair are taken from various locations on the human body is because the hair follicle is very good at identifying drug residue in the human body. This is just one of the reasons why hair samples are collected. Maintaining a close eye on the hair follicle at all times is important because this organ is one of the more sensitive ones in the body. This organ is responsible for hormone production, cellular repair and growth, and reproductive functions. It also contains the major cranial nerves and endocrine glands. A network of relatively minor blood vessels known as ducts control the processes above. Metabolites of various drugs can enter the hair follicles if the individual sweats or are exposed to secondhand tobacco. A drug test that examines the hair follicles can determine the presence of these metabolites in your hair, provided they are there. However, because of the longer detection time, this technique may not be as accurate as testing urine. In addition, several factors can make it challenging to correctly interpret the findings of a drug test performed on hair follicles. To eliminate any environmental contaminants that might affect the test results, the samples of hair that will be analyzed are usually cleaned first. After that, an ELISA or a GC-MS test is performed on the sample to ascertain whether or not any drugs or drug metabolites are present. Some employers choose to ascertain whether or not an employee has used illegal drugs by conducting drug tests on the hair follicles. In a drug-related incident or workplace disaster, they are also used to keep tabs on employees who may have been involved. A hair follicle test detects a drug metabolite produced in the body as it breaks down a substance. The individual has likely used drugs if the drug's metabolite is found in the system. The findings could be inconclusive if the hair sample test that was tested was tainted in any way or if the testing procedure itself was flawed. When something like this occurs, the laboratory may request another sample. A drug test that uses hair follicles rather than urine can identify the presence of drugs for up to three months longer than a urine test. Following the shipment of a hair sample to a laboratory for analysis, the results are typically accessible within two to three days.
0 Comments
Leave a Reply. |
|