CAN you MAKE MY seventeen old be drug tested without consent?

I'm 17 and everywhere I went they refused to drug test me because I didn't want it and I was not in any immdiate danger. I was not using drugs, but my grandparents were trying to do it anyways. If you are so concerned about it, try to find a reason to take your child to a doctor, if the doctor thinks it needs to be done, well they will do it.