Pregnancy 101: How pregnancy tests work

This video discusses how over-the-counter pregnancy tests work, why women urinate on a small plastic sticks and what reactions are taking place to display the positive or negative result within seconds. The video is the first in the Pregnancy 101 series that delve into the different stages of pregnancy from conception to birth, while unravelling the common questions asked by expecting parents and curious minds, from answering what exactly happens during pregnancy to potential complications that can come about.

This video was made by McMaster Demystifying Medicine students Shara Chowdhury, Vanessa Miranda, Mishaal Qazi and Peter Tso

Copyright McMaster University 2017

References:

Kalinski, M. A., & Guss, D. A. (2002). Hemorrhagic shock from a ruptured ectopic pregnancy in a patient with a negative urine pregnancy test result. Annals of emergency medicine, 40(1), 102-105.

Wilcox, A. J., Baird, D. D., & Weinberg, C. R. (1999). Time of implantation of the conceptus and loss of pregnancy. N Engl J Med, 1999(340), 1796-1799.

[МаркПольский-йу]

And here I am, watching pregnancy 101s the day before my finals.

[felixadkins]

Very informative. I always buy my tests at dollar tree dobble wrap the bag n hid it my back pack so my mom wont see lol

[yousefalkhudair]

It's not accurate at all. My gf got knocked up twice and she still got two false results

[maikelwenders]

The control zone is not explained properly: in the control zone different antibodies await the antibodies from the reaction zone, to ensure that the antibodies from the reaction zone managed to travel upwards of the strip.

[Natalheroes]

The control zone does not await an unpaired hCG. If that was true, if a woman is not pregnant, her urine will not activate the control zone??

[UniversalMysticsOfChrist]

Ectopic is not a "false" preg🙄