failed thc on oral drug test hadnt smoked for 2weeks before and only had 2-3 puffs. I am on asthma medication and nothing else. Had mild dehydration and smoked a cigirette just before test. the amount of time to collect the saliva was prolonged due to a dry mouth and person taking me for the test was unfamilure with the process, test had been recapped before they relised it had to be put under my tounge for 30 secounds as well, after swabing sides of mouth and tounge could the delay time affect the out come of results passed a urine test next morning with a concertrated urine sample had not taken any blockers or anything as I did not know the hospital would drug test me while I was having a dibetic testing done I had told the nurse about the failed test the day before and she tested me without my knowledge if anyone could explain what has happened I would be very thankful cheers
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