The active presence of tetrahydrocannabinol (THC) can be known through blood test. The levels of THC in blood plasma are higher with a concentration of 100ng/ml. The concentration remains higher at the time of consumption and declines rapidly. However, when marijuana testing is done through blood tests, the drug can be detected at a level of 1-2ng/ml for eight hours or more.

Detection of THC by blood tests acts as useful indicator for marijuana usage. High amounts of THC in blood indicates that the person has consumed marijuana recently. This can be helpful in certain cases such as road accidents, workplaces and autopsy.

Apart from THC, its metabolite carboxylic THC can also be detected through blood tests. It can be detected for a couple of days for a single use of drug. However, in chronic users, it can be detected for a few weeks. Hence this may not be used as a valid indicator for confirming the drug usage. Another metabolite called 11-hydroxy-THC can be detected through blood tests. It is a byproduct which is produced by processing of THC in liver after oral consumption of the drug.

Blood tests for marijuana drug tests are conducted at various organizations. Many drug test kits are generally available that can be used at home. However, these are not available for performing blood tests as the administration of sample is difficult. Also these tests require proper laboratory analysis for achieving proper results.

The cost of blood test for marijuana is relatively higher. It also involves a long procedure that lasts for about four to six days.

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Safe work place: Work environment will be free from any form of addiction related crimes, injuries, and accidents, if employee drug testing is conducted by the organizations. Safety at job is increased by employee drug testing and safe and secure environment is maintained. Addicted persons joining the organization, who spoil the working the environment, can be prevented by conducting the pre employment test.

Improvement in quality of work and productivity: It is important for employee productivity and professional environment for any organization or establishment of business. Employee productivity is reduced and negative traits and unprofessional behavior is encouraged by drug use. A healthier working environment is led by detecting drug abuse among present and future employees. Productivity and quality of work will be improved by healthier working environment.

Reduces the health costs: Because of drug use, employee is affected from sudden mood swings and irrational behavior which results in work place accidents. The drug addicted employees are eliminated by the drug testing and system is cleaned by this. So in this way, it helps to be free from such employees to save the significant amount of money which is given by employer for health insurance premiums. Health costs are saved by the company towards medical treatments of such employees due to accidents.

There are many advantages of conducting drug tests in organizations. It helps to have safe work environment and increases the productivity.

Now coming to the marijuana addiction, it occurs because of excessive usage of marijuana. Here in this type of addiction, uncontrollable cravings towards marijuana will occur. One might take a strong decision regarding the quitting the marijuana usage but the relapse conditions will overwhelm the marijuana usage.

By the use of marijuana, one becomes both physically and mentally addictive. Once the person gets addicted, the person cannot think beyond marijuana and it will rule him. Marijuana contains the THC component which will effect the changes in the brain.

One can easily find out a person who is addicted to marijuana. He/she who is addicted will always stay in the isolation. One can see the joints of used marijuana in his pockets or in his room. His clothes stink. They carry huge amounts of marijuana with them when they travel. They look always stressed and depressed.

After a person gets addicted, he/she might do illegal things as a part of their behavioral changes. Generally, they steal money for buying marijuana, even link up with the persons who sell marijuana, do crimes because of behavior changes. All these can be avoided by regularly using marijuana drug test kits; if addicted, getting an effective treatment for curing the addiction.

Naturally a chemical is produced by the body that is very similar to THC; these chemicals are called as endogenous cannabinoids or endocannabinod. THC or delta 9 is one of the ingredient and chemical found in marijuana.

Neurons are cells in brain; information will be processed by this cells. These cells are authorized by neurotransmitter chemicals to communicate with each other. These cells release in to gap between the neurons known as synapse. There are some proteins in neurons called as receptors which are specific to neurotransmitters. Various cellular mechanisms are turned on or off by these receptors. Production, release or re-uptake of various neurotransmitters are effected by the drugs. Actions of neurotransmitters are blocked by the marijuana drug. It interferes with the mechanisms which associates with the receptor. Dopamine is a neurotransmitter, which associates with pleasurable sensations externally. This dopamine production is reduced by drug use. Indication for this harmful behavior of the user. Neurons are activated by this drug leading to high sensation of feelings.

Marijuana users thus experience reduction in pain and increased appetite. They may get sleepiness, impaired attention span, mellow feeling, and blood pressure can be reduced.

There are so many adverse effects of use of marijuana on brain and body of human beings. Some times it may lead to cancer as well as death.

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