Does anybody know anything nearly drug u.a. try-out false positives or r they pretty accurate?

i want to take the u.a. on my own but i hold heard some weird and wonderful stories about false possitives cause from food and o.t.c. cold
and flu medicine. and plentiful more meds . i dont really want to fast for 3 days because that wouldn't do much honest . Has any body out there created a correct out come and if so PLEASE HELP ME TO UNDERSTAND HOW I CAN NOT FEEL SO AFRAID THAT THINGS WONT TURN OUT IN MY FAVOR AND IF THEY DONT WHAT DOES A PERSON DO. i HAVE BEEN CLEAN FOR 18 MONTHS(-MTH) IT HAS BEEN A LONG TOW ----FAILURE IS NOT AN OPTION. CAN SOMEONE PLEASE SHARE THEIR KNOWLEDGE ON THIS SUBJECT WITH ME.Does anybody know anything nearly drug u.a. try-out false positives or r they pretty accurate?
Don't fast, it won't assist. False positives can be caused by anything beside poppy seeds surrounded by it, take enduring meds that were prescribed to you approaching Vicodin, and Ritalin. Don't worry in the order of it if you are not taking any drugs not prescribed to you and tell them any that you hold been taking. If you go and get a false positive they will be willing to do a retest and probably use a more accurate interview. The chances of a false positive are pretty small.
First stale congrats! It's hard to quit drugs and I congratulate you for it a lot of relations relapse so keep your leader up K.
Some prescriptions can turn up false positive however they now enjoy a new mode to test it's supposed to be more accurate they swab the mouth or the curls is another way to do it and that shows a longer history.