hCG Levels Calculator | hCG Doubling | 合法醫療器材資訊網

2020年12月2日—WhatarehCGlevels?HowtousethehCGdoublingcalculator;Normaldoublingtimes;hCGlevelchart;hCGpregnancytest;hCGdiet.ThishCG ...

hCG is a very reliable marker to indicate that someone is pregnant. It can already be detected in the blood eight days after the fertilization of the egg, and ten days for urine. Although the hCG marker is very sensitive, you have to keep in mind that if the test occurs during these 8–10 days after the fertilization, it could give a falsely negative result. It means that, in spite of the presence of a developing pregnancy inside a womans body, the pregnancy test may come back negative.

Hillel Shapiro and Harry Zwarenstein developed the first version of the hCG pregnancy test at the beginning of the 1930s. They discovered that injecting urine of a pregnant woman (which, as we already know, contains hCG) into a Xenopus toad caused the toad to ovulate. Needless to say, that before researchers fully understood the processes behind this phenomena, the poor Xenophus toads were massively exported and used ...