- A urine drug screen testing procedure is, at this time is the most common rapid drug test kit. According to government regulations, a urine rapid on-site drug screen test kit need a more expensive confirmatory GC/MS laboratory drug test screen for all preliminary non-negative results. The urine rapid on-site drug screen test comes out comparable to a home urine pregnancy test, when a urine sample have to be placed on a testing urine strip to find out the presence of a exacting hormones or metabolites. If specimen passes a rapid urine drug screen test, those urine samples have not been sending for the confirmation through more accurate laboratory drug testing procedure. The pass a urine drug test products existing on a market for people who need to pass a urine drug and produced in a form of drinks, pills, and capsules. On the other hand special rapid urine test for adulterants detection also are available.