A 40-year-old female asked:
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hi doc iv had a urine drugs test at work and failed on opiates.just had paracetomol/ibuprfeon/loratadine

2 doctor answers
Dr. Bahman Omrani
16 years experience Pain Management
Likely true : Most urine drug tests have high sensitivity and specificity in detecting drugs being tested for. Rarely do we see a false positive (possibly your situation). Inquire about the exact type of test. If it was a quantitative/confirmatory test (e.g. Lc/ms), then it would be hard to argue. If you truly did not take opiates, its worth a fight. If you did, its a losing battle and a sign to seek help.
Answered on Jul 2, 2013
Dr. Gary-Anthony Lawson-Boucher
21 years experience Anesthesiology
Drug test: Paracetamol Ibuprofen and loratidine with their metabolites wouldn't test positive for opiates. If you have not taken any opiates within 1 week, then the test must be a false positive, or you ingested foods which could have made the test positive.
Answered on Feb 19, 2015
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