The calculation of gestational age and expected date of birth in the concentration of hCG
This is one way a pregnancy, due date, but many doctors or use. The method of calculating this period, based on the change of hormone levels of hCG (human Chorionic Gonadotropin) during pregnancy, as follows:
- 3 weeks gestational age hCG levels are: 5-50mlU / ml.
- Thai 4-week-old unborn hCG concentrations 5-426mlU / ml.
- 5 week old fetus hCG levels 19-7340mlU / ml.
- hCG concentrations 6 weeks old 1080-56500mlU / ml.
- age 7 weeks pregnant concentration: 7650-229000mlU / ml.
- 9-12 week old fetus hCG levels 257000-288000mlU / ml.
- From 13-16 weeks old 13300-254000mlU / ml.
- 17-24 weeks gestational age levels 4060-165400mlU hCG / ml.
- gestational age of 25 weeks or more with hCG levels: 3640-117000mlU / ml.
- After 4-6 weeks of birth, hCG levels will drop to below 5mlU / ml.
these indicators, in addition to predicting the effects or the age of the fetus, it can also help doctors monitor the situation developed the first 3 months of pregnancy.
You Tsinghua dear! Above are our suggestions on how to calculate the exact gestational age. Hope you soon to make choices appropriate to ensure the health of mother and baby! If you have any questions, please talk to us on phone number: 01666065566 to 01666065588 for advice by experts.
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