Pre-employment drug tests are used to determine if a prospective hire uses illicit substances or abuses prescription medication. Employers may require a job candidate to complete a pre-employment drug test, and a job offer may be contingent upon the applicant’s ability to pass. Pre-employment drug testing is critical for occupations that place employees in safety-sensitive environments, as it can help reduce the number of costly workers’ compensation claims involving drug or alcohol use. The most common type of pre-employment drug testing is a urine test, which can show traces of drug use even after the effects of the drug have worn off and remain in the body for an extended period of time. The typical drugs screened in a pre-employment urine drug test include marijuana, cocaine, amphetamines/methamphetamines, PCP, and opioids, with the option for employers to test for many additional substances. The most common type of drug testing for hiring is a 5-panel basic test, which checks for the use of marijuana, cocaine, codeine, morphine, heroin, PCP, and amphetamines like Ritalin and Adderall. However, employers may also choose more extensive tests that check for other substances like MDMA (ecstasy), barbiturates, and prescription opiates like oxycodone.