A member asked:

What should i do about potential false positive for meth?

A doctor has provided 1 answer

Don't understand ?: Amphetamine false positives on screening tests are highly common, and if such a test is used for "forensic" purposes - i.e., there are legal consequences to a positive test - a confirmatory test should be used that will tell a false from true positive. If you are on decongestants of any kind, false + results are common, and other drugs may cause them as well. You can insist on confirmatory tests.

Answered 7/26/2015

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