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How Do Pregnancy Tests Work?

Video   Jan 10, 2019 | by TED-Ed: lesson by Tien Nguyen, animation by Andrew Foerster

 

Over-the-counter pregnancy tests give potentially life-changing results with a pretty high rate of accuracy. But how do they work? Tien Nguyen explains how each test performs a scientifically rigorous, multi-stage test that goes from start to finish in the time that it’ll take you to watch this video.

Lesson by Tien Nguyen, animation by Andrew Foerster.

 
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