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Tag "pregnancy"
How Pregnancy Tests Work (Mar, 1964)

This is a whole hell of a lot less convenient than “pee on a stick, see if it changes color”. Living in Portland, my first thought was: “But what will the vegan girls do?”. Also, while he is a gynecologist, I’m not really sure I’d trust medical advice from someone who is President of the Metropolitan New York Society of Clinical Hypnosis.

How Pregnancy Tests Work

How doctors decide if a woman is — or is not — pregnant.

by Dr. Leo Wollman, M.D.

The first thing a woman thinks of when her menstrual period is late is: Am I pregnant? Usually there is no way for her to know for certain at this time until her doctor has her take a pregnancy test.

What is a pregnancy test?

Most of them are based on the presence during pregnancy of an increased amount of a substance which stimulates the sex glands— called gonadotropin—in the woman’s blood or urine. The sample is injected in a small animal (usually a rabbit, a mouse, or a frog), and if the animal shows certain changes in its reproductive organs, it means that the woman is pregnant.

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