This panel is used for detecting the presence of both legal and illegal substances. Drug testing is used for many purposes including clinical or medical care, workplace testing, postmortem (cause-of-death), corrections and other law enforcement, and sports testing. Drugs that are tested for in this screening are amphetamines; cannabinoids (marijuana); cocaine metabolite; creatinine; opiates; pH and nitrite; phencyclidine (PCP); 6-acetylmorphine (if morphine is positive).