I take oxy 40s, norco 10/325, hydromorphone(dilaudid) and fentora 600mg which is strong opiate for cancer patients. I do have a script for all these but my question is I do heroin. Will they know I do heroin on blood test or will it show up opiate or will they know I'm doing or will it show up heroin.So will it show up heroin or opiate?