Marijuana is considered as one of the most addicting and dangerous drugs of all time as categorized with other harmful drugs such as cocaine, heroin, and nicotine. This is why the US government along with concerned officials have come up with solutions to quickly determine which individual is using drugs and needs attention. This gave rise to the formulation of drug testing.
Today, drug testing is used in schools, homes, workplaces as well as in legal courts that serve as valuable evidence. As time passed by, these drug tests have been improved and developed in such a way that altering results may be impossible to do so. The five types of drug testing are urine, blood, saliva, hair as well as sweat testing. Each has their own advantages and disadvantages. For Hair drug testing, an amount of hair strand is taken from the subject and then processed on the lab to look for THC metabolites that have been stuck on your hair follicles. This kind of drug test is advantageous in the sense that it can detect marijuana drug usage, not only in recent time but also in the past. For the sweat or perspiration drug test, an advanced patch is worn by the subject for a given amount of time. The patch is then removed after the time is finished and sent to the lab to be analyzed for marijuana metabolites that were voided through the sweat of the subject.
This kind of drug testing method is perfect for suspected users on observations since the patch can be worn at home. For saliva drug testing, a swab is used to obtain saliva samples that are later analyzed to check for the THC metabolites. This drug test is usually performed on sobriety checks done on the street to check if the driver is under the influence of the drug. The last two are urine and blood testing which are both invasive procedures and needs consent from the subject before it can be executed. These two types of drug testing are commonly used on periodic drug testing in the workforce as well as drug testing employees of government agencies. This is preferable to employees of large businesses since they are cheaper and can give faster and reliable results. These are only the summary of each drug test, if you want to learn more on the topic, be sure to do your own research in drug testing.