That whole process sounds ridiculous. If you are on prescribed medications that will make your drug screen positive such as Adderal, the MRO (medical review officer), will notify you & ask for the pharmacy where you had your medication filled at to verify that it is a prescribed medication for you. I have never in over 30 years in Healthcare, have ever heard of the drug screening process conducted in that way. You should have demanded that another drug test be done at another site. Also, do your homework and understand how the process should be conducted. Good Luck!.