That isn ' t possible , unfortunately . The test kits test for a variety of drugs all at once <| sep |> This is the kind of post that needs to be pinned . A lot of very useful information delivered in a well written way . Excellent work . <| sep |> Sorry , should have provided context . I used to be an editor of a music magazine . We ' d commission photographers to go to gigs , and the running cliche was that they could only take photos for the first 3 songs , with no flash . It became a running joke how many times we ' d hear it from promoters . <| sep |> You tell me this after I do Pfitz bloody 11 mi w 7 at threshold ! ?!! That shit sucked ! !! I was yelling at uncle pete in my mind for the entire last 2 miles . <| sep |> This . Its so fucking easy to tell if someone is lying . And if he is . crush him