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She ate a poppy seed salad just before giving birth. Then they took her baby away.
(www.motherjones.com)
this post was submitted on 09 Sep 2024
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Your understanding is incorrect. It varies depending on the sensitivity of the test and the seeds being ingested, but it is actually quite possible for poppy seeds to trigger a false positive on a urine test for opiates, and it does happen. MythBusters tested this in their 3rd episode many years ago. They bought test kits that were publicly available for workplace testing and followed their instructions. They, like you, went in thinking it was just a myth. The plan was that they would continue ingesting foods with poppy seeds until they either got a positive test or they ate such ridiculous quantities that it wasn't worth continuing. But they started getting positive results very quickly, (after just a few servings of either poppy seed bagels or poppy seed cake) and they stayed positive for a couple days. They called the companies that manufactured the tests and were assured repeatedly that it was not possible (because of course they would never admit that their tests can get false positive results). US Federal employers that test actually mandate that their tests have a much higher threshold because of this effect. But not everyone uses tests that adhere to that standard, and many are just way too sensitive.
https://www.defense.gov/News/News-Stories/Article/Article/3306336/service-members-should-avoid-foods-with-poppy-seeds/
https://drugfoundation.org.nz/articles/mythbusters-poppy-seeds
https://www.usada.org/spirit-of-sport/education/can-poppyseeds-cause-a-positive-drug-test/
I loved Mythubsters but they were far from rigorous scientists (and Adam Savage says that every time he talks about Mythbusters to get Will Smith's Tested some views).
Again, there are LOTS of variables involved including even whether the poppy seeds were washed or how sensitive the test is. My understanding is the disposable OTC-ish tests tend to be much higher sensitivity because they need to last a lot longer than chemicals in a lab.
Can it happen? Yes. Just like you CAN pop positive for THC from just walking too close to the stoners at a crag. But considering this was mass produced and processed salad dressing at a frigging costco? That is very much in the "oh god, I ate one poppy seed muffin!" territory. And considering that most of those arguments are geared toward people who will be unemployed if they piss hot, it is going to err on the side of caution.
Because there is a big gap between possible and probable. And you'll note that almost all reputable sources say "it is possible and you should avoid this" in the same way that basically everything sold in California is potentially cancerous.
In fact, for Mythubsters in particular: I would need to rewatch that episode (... I need to rewatch most of their episodes, honestly) but they were always in downtown San Francisco, right? Could EASILY see a case where they got gourmet/organic poppy seed muffins rather than the insanely processed crap you find at a kroger (or a costco).
Going back to hemp oil and THC. From actual tests we totally didn't misappropriate government lab resources to run, Bronners was incredibly processed and safe. But there was also enough variance bottle to bottle that I would never have (knowingly) risked it. We did basic statistics on the 4-ish bottles we tested but... money.
Whereas we also got a hold of some of the oil used at a local spa and that shit would have made Snoop Dogg dizzy.
I wasn't presenting Mythbusters as rigorous science, simply pointing out that a false positive is possible when using the tests as directed. If you want hard science, just go to Mayo Clinic's practical guide for clinicians:
https://www.mayoclinicproceedings.org/article/S0025-6196(11)61120-8/fulltext
They have citations with links. I'm not going to copy them all here.
Yes. What that says is that it is possible to false-positive. Particularly if the test is overly sensitive
As for the number of patients who did false positive: I might be having one of those days but I can't find the study size for those. It looks like they are only in referenced papers that I don't have access to because of a different problem in society.
Which gets back to what I have been saying all alone: Yes, it is possible. No, it is not particularly probable. But considering the consequences of a false positive, almost all guidance is going to say to err on the side of caution.
And, to reiterate, it is insane that social services would step in immediately rather than waiting for a blood test from someone who is already confined to a hospital because... pregnancy.
Yeah I don't get that part. They're claiming Mythbusters isn't reliable but their counter evidence is simply their own belief on how things work and they admit it is actually possible though unlikely.