A member asked:

I take morphine sulfate 200mg 3x a day. had a routine saliva drug test. tested positive for fentanyl. is this possible? never had fentanyl ever?

A doctor has provided 1 answer
Dr. Robert Bates jr. answered

Specializes in Critical Care

Repeat lab test: Next step would be for lab to repeat test and check quality control results.

Answered 8/2/2014

3.9k views

Thank

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