A member asked:

What would cause a false negative urine drug test for fentanyl patches?

A doctor has provided 1 answer

Errors: 1. Not wearing the patch, an exhausted patch, a placebo patch 2. The test was not specific for fentanyl 3. Lab error 4. Specimen misidentification.

Answered 9/13/2017

5.8k views

Thank

Related Questions

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more