Answer by
elynne (1153)
I believe it depends upon the sensitivy of the test. Most pre-work, or 'drup screening' test will simply show the basic make of drugs in your systrem; THC, ETOH, Stimulants, Depressive, opiates. But I believe the Toxicology test that a Hospital ER would run will give you speciifc drugs and your levels of them. The difference, price.