Urine drug testing, also known as urinalysis, is the most common and widely accepted method to test for recent use of drugs. It is ideal for maintaining a drug free workplace, testing on a pre-employment, random, post-accident, or reasonable suspicion basis, and can be used to identify a wide range of illicit and prescription drugs.
Despite the myths that many people still believe, it is very difficult to “cheat” a urine drug test. Drug metabolites cannot be “flushed” out by drinking lots of water, taking diuretics, or using a detox product. Adding contaminates or diluting a specimen will cause it to be flagged as “inconclusive,” requiring a second test, which is then taken under “direct observation” which means in plain view of the test administrator the whole time. Bringing clean urine provided by someone else might go unnoticed by the test administrator, but the temperature is likely to be off, which will also cause it to be flagged.
In addition to drug metabolites, urine drug testing may also measure pH, creatinine, nitrates, temperature, and any adulterants that may have been added to the urine specimen. This prevents any attempt to manipulate test results.
This type of drug testing is quick, simple, and it’s the only method allowed for DOT and other federally mandated tests. It is also the least expensive method to test for drug use.
It’s important to note that while a positive urine test does not necessarily mean that an individual was under the influence of drugs at the time of the test, it has become the standard for evidence of “current use” for the U.S. Department of Labor.