A member asked:

I gave my friend urine to pass a drug test and it said she failed for opiates. i dont understand how when i dont do any kind of drugs at all.

A doctor has provided 1 answer

False positives: There are other meds and a few food items that can cross react in the test and give a false positive. They may do a confirmatory test to check for specific opiate meds. However, that is despicable that you helped a friend pass a drug test by cheating rather than advising her to lay off any drugs since the test obviously was planned ahead of time.

Answered 10/1/2014

3.7k views

Thank

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