Interpreting drug test results – “not all drug levels are comparable”
As a drug tester or as an employer you might be familiar with the following scenario. ‘An employee’s drug test result has come back from the laboratory showing a positive test for Cannabis with a THC-COOH (the metabolite of THC, the main psychoactive compound in cannabis) level of 140ug/L (ng/ml). You’re aware that the cut-off …
Interpreting drug test results – “not all drug levels are comparable”Read More »