MississippiGuy

I just have one quick question. I just found out today that I will be taking a mouth swab drug test this upcoming Friday. My problem is that I took a 20mg adderall about one hour before I found out about the test. I also took a 40mg vyvanse yesterday afternoon(Sunday afternoon). Vyvanse has the medical name lisdexamfetamine so I am concerned about the amphetamine part of the drug. Everywhere that I have seen says that I have up to 72 hours to test positive for amphetamines in an oral drug test. Does anybody here have any idea on the possibilities of me failing this test? By the way, I do not take adderall or vyvanse on a regular basis. The only reason I took these two pills was to study for a test. Seems I've put myself in a bind.. Any thoughts are greatly appreciated!