pregnancy test
pregnancy test
English Definitions:
pregnancy test (noun)
a physiological test to determine whether a woman is pregnant
Pregnancy test
A pregnancy test attempts to determine whether a woman is pregnant. Markers that indicate pregnancy are found in urine and blood, and pregnancy tests require sampling one of these substances. The first of these markers to be discovered, human chorionic gonadotropin, was discovered in 1930 to be produced by the trophoblast cells of the fertilised ovum. While hCG is a reliable marker of pregnancy, it cannot be detected until after implantation: this results in false negatives if the test is performed during the very early stages of pregnancy. Obstetric ultrasonography may also be used to detect pregnancy. Obstetric ultrasonography was first practiced in the 1960s; the first home test kit for hCG was invented in 1968 by Margaret Crane in New York. She was granted two U.S. patents: 3,579,306 and 215,774. The kits went on the market in the U.S. and Europe in the mid-1970s.
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"pregnancy test." Kamus.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.kamus.net/english/pregnancy+test>.
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