The following chart gives approximate detection periods for each substance by test type. The ranges depend on amount and frequency of use, metabolic rate, body mass, age, overall health, drug tolerance, and urine pH.
Urine drug test This procedure usually involves you going into the bathroom and filling up a cup with your urine. They either use a test card right then for immediate results or send it away to a lab to get tested through a sophisticated gas analyzer.
Hair Follicle drug test Hair testing is quite accurate and can go back 6 months, showing all of the toxins you used in a sort of timeline. Many people try to get around this by just shaving their head. Know that they will go for your underarm, pubic, leg or arm hair if you do not have the required 1/2 inch on your head.
Blood drug test Blood testing is usually performed for serious employment positions or when you are applying for insurance policies. This is expensive and not very common.
Saliva drug test This is not common and can only detect toxins used 3-4 days prior. Insurance companies and law enforcement agencies use this method most often.
External links
Drugs-plaza.com about drug test and how to pass (http://www.drugs-plaza.com/drug_test.htm)
Once widely used for the testing of illegal drugs, its use is now declining; the time period during which alcohol and drugs can be detected by this method is relatively low, 3 hours to 4 days max.
Testing labs caught on to this trick and started asking clients to empty their pockets and leave their purses outside of the lavatory when they went in to give their specimen.
This test is now usually used for random job tests, or when an employer feels he has cause to test you, because they can get a faster answer.
There are numerous determining factors for how long drug toxins stay in a persons body which vary from person to person, such as the analytical method used, your health, your body weight, metabolism, fluid intake, the type of drug toxin, and the degree of exposure to the drug toxin.
Drugtesting has become commonplace for many new job applications, random testing in the workplace, and may be a requirement of various other situations.
Marijuanadrug use can be detected rapidly up to six hours after consumption by testing blood; after that, the metabolite concentration falls rapidly, and marijuana may be detectable for up to 22 hours, but is usually not detectable in blood after 22 hours.
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