Urine Analysis Drug Testing

Published: 04th March 2009
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Urine analysis drug testing is a fast and easy procedure to determine if a person is positive in using illegal drugs like methamphetamine and cannabis.

Urine analysis drug testing is often a requirement in pre-employment medical examination, pre-assumption of a public office position, pre-issuance of a driver's license and random drug testing (initiated by companies to discourage drug use among employees, or schools to help students get help in their addiction).

Detection periods for commonly abused illegal drugs through urine analysis drug testing are as follows: Methamphetamine - 3 to 5 days; Barbiturates - 2 to 3 days; Cannabis - 1 to 6 days for single use; Cocaine, 2 to 4 days; Ecstacy (MDMA) - 4 days; and Amphetamine - 1 to 3 days.

Urine analysis drug testing involves the collection of the urine sample at least 30 ml and secured with a tamper-resistant tape. At the laboratory, the urine sample will be divided into two aliquots. The first is for the initial screening or the immuniassay procedure.

If the person is tested positive, the second aliquot will be used to confirm the findings through GC-MS method (Gas Chromatography-Mass Spectroscopy). An assigned physician from the Medical Review Office will review the urine tests and will inform the party requesting for the test about the results.

Urine analysis drug testing is not fail-proof. Limitations include inability to detect current drug use since it will take approximately 6 to 8 hours or more after the inducement of the illegal drugs into the body for the traces to metabolize and excreted in the urine.

This method is also prone to cheating through urine sample substitution and adulteration, from drinking as much as 2 liters of water combined with Vitamin B to using commercially available adulterant chemicals.


You can view more information at Urine Analysis.

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