I think one of the PoC||GTFO having a “reversing a pregnancy test” that worked pretty much the same way.

https://raw.githubusercontent.com/tylert/pocorgtfo/gh-pages/...

> Chapter 6: Reversing a Pregnancy Test; or, Bitch better have my money!

> Each strip has an absorbent area (that you pee on) and a clear window where the test results show up. One stripe is a control stripe that ‘fires’ (changes color) in any liquid from water to bourbon, and the other one is a test stripe that only fires when suffi- cient concentrations of the hormone hCG are present in the fluid sample. (hCG stands for Human Chori- onic Gonadotropin, named because scientists snicker at words like “gonad.”) You can use the strips with- out the digital tester, because all you’re being sold is a device that will load in one of the basic strips, and monitor the control and test stripes, and return three results: ERROR, NOT or PREGNANT. It turns out that $50 and getting at least one pregnant woman to pee on a test strip can end up for an en- tertaining couple of evenings at the old workbench.

comments:

>Johannes says:

>The whole story is even worse. Despite the fact that they have no added value over normal tests, the Biden administration signed a deal over 232 million USD for just 8.5 milion tests (nearly 30 USD each), giving the product legitimacy, and then later on the company had to recall basically all tests ever made due to false positives.

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