Find out what type of laboratory testing is done to ensure fair and accurate procedures. Be aware that undue interest or reluctance to test may be interpreted negatively. Hope that enough time has passed since last usage. Learn the facts about residual differences and time spans. Hope the courts will rule against it before it becomes a problem for you.
Test Is the most commonly used urinalysis.
Detects the presence of chemical metabolites by mixing urine with a special solution. If positive, a distinct reaction occurs. Usually used as an alternative method to confirm a positive result with EMIT assay. Urine is placed on a chemically treated paper that shows the presence of individual drugs in a distinct pattern and color. Specific for individual drugs.