do employers test for steroids regarding employment like construction or driving jobs? I was told they only test for narcotics such as heroin, cocaine, and marijuana (probably other things as well that I forgot to mention). I figured they would want someone strong when doing construction work so I'm sure employers wouldn't mind anyone being on steroids, right? LOL. Not sure what else they test people for. Usually this is a urine test and not blood test since blood analysis cost companies more, right?