please help

Hello. My stepson has a situation, and it's not very good. I am in chronic pain, and he got into my medication stash and stupidly ate a whole 800 mcg actiq. He goes in thursday to get a drug test for teen court, and I am afraid he will not pass due to this recent event. If anyone knows how long this particular drug stays in your blood, respond to me as soon as possible. Thank you very much. Daniel Cunningham