What is drug testing?
Drug testing is an approach used to test individuals for the presence of psychoactive drugs. Testing generally uses some form of biological specimen, generally urine, hair or saliva. Generally speaking, drug tests can detect use of illicit drugs within several hours or days of use. Many factors may influence whether a particular drug test will successfully detect any given individual’s recent drug use. These include how recently someone has taken a drug and what percentage of detectable metabolites are still…