There are three different types of test for the Urine Drug.

Home Drug Test Kits are becoming more and more popular in the private sector for individual use, parents their testing teens, random drug testing in the work place and on the spot hiring. Most have a 50 ng/ml cut-off but there are some new ones that can test down to the GCMS level of 15 ng/ml cut-off, we have available the following for our customers in a 50 ng/ml cut-off single panel
drug screen, Amphetamine, Barbiturates, Benzodiazepines, Cocaine, Ecstasy (MDMA), Marijuana (THC), Methamphetamines, Methadone, Nicotine, Opiates, PCP and Oxycodone please click on this link for more options.

EMIT is the acronym for enzyme multiplied immunoassay technique, the cheapest and most common drug screen used in workplace drug testing. EMIT testing is typically used by employers as a preliminary drug screen because the test is prone to incorrect results. In general, occasional consumers (as in, once or twice per week) should have little trouble passing an EMIT test – which typically uses a 50 ng/ml cut-off for the THC-COOH metabolite – as long as they have had one or two days of abstinence prior to taking the test.

GCMS is the acronym for gas chromatography/mass spectrometry, better known in layman’s terms as the “confirmation test.” Most workplace drug testing programs (including regulations for all US federal jobs) mandate all positive EMIT tests be confirmed by GCMS to eliminate the likelihood of “false positive” test results. Because GCMS tests typically use a low 15 ng/ml cut-off for marijuana metabolites, frequent cannabis consumers are prone to testing positive on this test for two to three weeks (or even longer in some extreme cases) after their last encounter.