Don't worry bro, My wife runs a medical clinic and has been there for 11 years. They have never had a company call and ask for a test for gear. The standard test they run is a panel 10 drug test. This only checks for Marijuana, opiates, cocaine, amphetimines, Proproxyphene(PCP), ansd other street drugs. The reason hair is being used now is that hair holds traces of the drugs longer than urine does and also will not washout with the cleanser drinks from the headshed. Hope this helps.
LongBall