Urinalysis for Routine Drug Test
Urinalysis is a combination of the words urine and analysis. In the medical field, urinalysis test is called R&M (routine and microscopy). It is the actual microscopic, chemical and physical examination and analysis of urine. The process involves various tests to identify and measure substances, cells and drugs that are in the urine.
Urinalysis test is done to detect medical conditions such as pregnancy, kidney disorders, urinary tract infections and for monitoring other organs’ status and subsequent response to treatment. However, corporate urinalysis mainly involves urine drug screening.
Routine Urine Drug Testing
Most companies require urine drug screening in order to detect the presence of prescription and illegal drugs in the urine of employees. The test brings no discomfort as it only involves normal urination. When used as a drug screen, urinalysis must be done within certain period of time. For example:
- 3 to 10 hours - alcohol
- 0 to 6 weeks - barbiturates, benzodiazepines
- 24 to 48 hours - amphetamines
- 1 to 2 days - codeine, cocaine, morphine, hydromorphone and heroin
- 2 to 3 days - methadone
- 1 to 8 days - PCP (Phencyclidine)
- 6 to 11 weeks- THC (Tetrahydrocannabinol)
- 6 to 48 hours - Propoxyphene
Urinalysis Lab Test Process
For a clean sample, both men and women are required to clean their organs with soap and water. The urine sample must be midstream. This is done by urinating a small amount into the bowl before collecting the urine sample into a clean container.
In most instances the person is asked to remove all his clothing and wear a hospital gown with no pockets for possibly hiding uncontaminated urine sample. The person up for urine drug screening is placed in a toilet or room with no access to water to prevent tampering with the urine specimen. The urine sample will then be taken to an onsite drug testing lab for initial screening. Normal results indicate that there are no drugs in the urine. Positive urine drug screening requires another test to confirm the result as sometimes a false-positive result will register due to factors such as prescription drugs and food taken by the person.