View Post

Cocaine: Acute Toxicity and Presumptive Testing
By Jerald Cook, MD, FACOEM

In Blog by Jerald Cook

Cocaine remains a popular drug of abuse, and per HHS (2008) of 6.5 million US Federal workplace drug tests, about 40,000 were positive for cocaine in 2007. Drug testing for cocaine is based on the metabolite benzoylecogonine which is detectable in the user’s urine for 24 hours, possibly even up to 72 hours. Non-metabolized cocaine may only be detectable for …

View Post

Presumptive Testing
By Jerald Cook, MD, FACOEM

In Blog by Jerald Cook

Presumptive tests, also known as preliminary tests or field tests, allow drugs to be quickly classified into a particular chemical group, but do not unequivocally identify the presence of a specific chemical compound. Preliminary drug test results are often included in a panel of tests, which then be used as a guide to an appropriate confirmatory test to determine and …