OK,I'm not going to lie and say it was a friend of mine.The truth is I smoked 5 hits of marijuana about 5-6 weeks ago after not having smoked it for nearly 2 years.Today I had to take a saliva swab drug test.Does anybody now from EXPERIENCE if I will test positive?Some sites say 72 hours some say 30 days my job kinda depends on this result and I'm trying to pay for college,so please only factual information.Also about 3 days ago I took a tylenol 3 that was prescribed to me about 2 years ago after a car wreck because I had a bad migraine.Can I still tell them it was a prescribed medication if it shows up?Thanks!