How to clean your system for a drug test?

Not Medical/Legal Advice: Abstinence is regarded as the best way to beat a drug test. Don't do drugs in the weeks prior to the test.

Urine testing is the gold standard of the drug-test trade. In dealing with urinalysis on short notice, the general strategy is to increase your fluid intake and urinate frequently so as to dilute the concentration of drugs or flush out the toxins that cause a sample to be positive.

Most banned substances pass through the body quickly but pesky THC abides in fat cells and remains visible in urine for as long as 4 weeks.

While it won't give you a 100% guarantee, a daily detox drink may lessen the amount of THC stored in your body and thus cut the time required to cleanse. It's vital that at least 48 to 72 hours pass from toxin to test, meaning no smoking for several days before the test.

Blood testing is the most invasive and accurate type of drug testing. But you can still have a good chance of getting a negative result as drugs disappear from the blood stream in a very short time. Stay away from toxins for 24-48 hours.

As with a hair test, aside from abstinence, you can turn to many follicle shampoos available from a variety of retail outlets, online stores and elsewhere.

While claims that commercially sold detox shampoos are just merely one of the company's marketing strategies, shampoo manufacturers on the other hand have begun reformulating their products to guarantee effectiveness.

In the news, a school district is drug testing 10-year-old students. Find out why at Care2.com.