A 49-year-old female asked:
false positive on urine drug screen will ketorolac or fentanyl cause a false positive for a barbituate in a urine test. previously had a blood test for drugs which was negative and was given these two medications in the hospital for pain and then give t
2 doctor answers
Dr. Heidi Fowler answered
24 years experience Psychiatry
Hello. : Hello. Ketorolac (toradol) is a nonsteroidal anti-inflammatory drug used for acute pain. Fentanyl is an opioid (narcotic) analgesic for severe pain. Neither of these are barbituates. Do not see how they would trigger a false positive on a urine drug screen.
Answered on Oct 3, 2016
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