Drug testing is the method which is used for measuring and evaluating the type and even the quantity of the legal or the illegal drug taken. It is done to check out whether the consumed drug is legal or illegal and when all the tests are done properly the result of the test will be accurate.

In general, the drugs are of two types: legal and illegal. The legal types of drugs are used mostly for medical purposes for curing any diseases. The other types of drugs are recreational drugs or illegal drugs which are prohibited by the national laws and they are used for fun and entertainment. The drug testing is done mostly for the case of illegal drugs.

The drug test is the analysis done by the biological samples. The samples like urine, hair, blood, saliva, sweat etc are used. Drug test is helpful at the homes, work places, schools and even at sports. Some of the illegal drugs are cocaine, heroin, alcohol, morphine etc.

Drug testing is generally done to avoid accidents and even to improve the work place productivity and also to create a drug free environment so that all the workers can do the work without any interruption. Illegal use of drugs results in many health hazards and ends up with death.

There will be change in the urine, saliva and even the blood of the drug addicted person. So, these are screened for finding out the drug abused or addicted person. However, there are detection periods which are used for detecting the drug addicted persons.

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