A positive immunoassay opiate screen in the context of False methadone-positive urine drug screens in patients treated with quetiapine.
A specific immunoassay is available for methadone testing. ○. Positive False positive and false negative results in urine drug screening tests
There have been recent reports of false methadone-positive urine drug screens in patients who are not believed to be receiving methadone.
come up as a false positive for PCP in a urine drug screen. phentermine may flag as a false positive amphetamine in a urine drug screen.
come up as a false positive for PCP in a urine drug screen. phentermine may flag as a false positive amphetamine in a urine drug screen.
This case is atypical in terms of a delayed rhabdomyolysis and a false positive urine drug screen test for methadone. There is evidence that doxylamine at toxic levels can lead to false positives for methadone and phencyclidine testing using immunoassay-based urine drug screen kits.
Interference with urine drug screen: DICLEGIS may interfere with urine DICLEGIS may cause false positive urine drug screening test for methadone, opiates
There have been recent reports of false methadone-positive urine drug screens in patients who are not believed to be receiving methadone.
come up as a false positive for PCP in a urine drug screen. phentermine may flag as a false positive amphetamine in a urine drug screen.
Comments
I am a Doctor and have never given out a false positive report in 30 years of practise.
No real BTB
Sorry Saddletramp, you are getting old & rusty.
The woman deserved death.
It's not like "Let me immediately take action based on belief in the complete accuracy of a single medical report" isn't the norm in such stories. Arguably, her real fault wasn't in sleeping around, it was in going home and thinking there was going to be a marriage left after she blew it up.
(And, to be honest, I'm sure many of the readers don't actually understand how false positives work. If you get a positive result on a 99% accurate test, that doesn't mean there's only a 1% chance of it being wrong.
On rare diseases, a positive result is very likely to be a false one, simply by the weight of numbers: If a test is 99% accurate, and 100,000 people get tested for a disease that only 500 of them have, then you're going to end up with 495 true positive results (99% of the sick people got accurate results) and 995 false positive results (1% of the healthy people got inaccurate results). In case like this, that would mean that a positive result in a 99% accurate test is only actually a ~33% chance that you have the disease.
tl;dr: The doctor was an idiot, and the ending should have included a malpractice lawsuit for failing basic math.)