What is the blood HCG value for ectopic pregnancy?

What is the blood hcg value for ectopic pregnancy?

1. HCG chorionic gonadotropin is the most familiar and commonly used "pregnancy test" hormone for obstetricians and gynecologists. It is composed of glycoproteins of α and β dimers. But the α-subunit has a common anterior pituitary hormone. The β-subunit has the special characteristics of HCG. The complete HCG is produced by the syncytiotrophoblast of the placental chorion. Its main function is to stimulate the corpus luteum, which is conducive to the continuous secretion of estrogen and progesterone, promote the formation of uterine decidua, and make the placenta grow and mature. Modern people believe that HCG is produced by the transition cells and syncytial cells of the trophic layer. In order to maintain pregnancy, it increases rapidly in the first 8 weeks of pregnancy. After about 8 weeks of pregnancy, HCG gradually decreases until it reaches relative stability around 20 weeks.

2. The early diagnosis of ectopic pregnancy is mainly to detect blood HCG chorionic gonadotropin. Because HCG is a specific hormone secreted during pregnancy, β-HCG can be used to assist in the diagnosis of early unruptured ectopic pregnancy. The amount of HCG secreted by normal villus development is large, and the titer continues to rise rapidly every day, increasing by more than 66% every 48 hours. That is, if β-HCG increases by more than 66% every two days, it can be diagnosed as intrauterine pregnancy; if the increase is less than 66%, there is a high possibility of ectopic pregnancy or intrauterine pregnancy maldevelopment. After a woman becomes pregnant, bleeding β-HCG can be measured from the 9th to the 11th day. The β-HCG rises once every two days. The amount of β-HCG can increase by 2 times. Even if there is a threatened abortion, the HCG increase rate will not change. For example, if it is 234 today, if it is measured at around 450 the day after tomorrow, it can be considered a normal intrauterine pregnancy.