How long does it take for a woman to be pregnant if the hcg level is more than 400?

The hCG blood test determines whether a woman is pregnant by accurately measuring the hCG level in her blood. Compared with traditional urine hCG, blood hCG is more accurate, has smaller deviations, and can be tested earlier. In order to accurately test whether you are pregnant, doctors generally recommend a blood test for hCG pregnancy test. Checking hCG value through "quantitative analysis" of blood can reflect pregnancy more sensitively and accurately than using general pregnancy test paper to "judge" urine test, with an accuracy of over 99%.

In addition, for multiple pregnancies, ectopic pregnancies, language delay of test tube embryos, hydatidiform mole, some endocrine diseases or tumors, doctors often combine blood hCG values ​​with clinical conditions and other test results for analysis, which can usually obtain a more accurate diagnosis.

The hCG pregnancy test (human chorionic gonadotropin) is a common "pregnancy test" for growth hormone that is well known and used by obstetricians and gynecologists and nurses. It is composed of α and β dimers of glycoprotein. When a woman becomes pregnant, hCG will be present in her blood and urine. After a woman becomes pregnant, an increase in β-hCG can be detected in the blood from the 9th to 11th day after fertilization. It rises rapidly in the first 8 weeks of pregnancy, and then slowly decreases after about 8 weeks of pregnancy, reaching a relatively stable value until about 20 weeks of pregnancy.

Generally speaking, urine hCG tests such as early pregnancy test strips can only be tested one week after the menstrual period, while blood hCG pregnancy tests can usually be tested one or two days after the menstrual period. This can advance the time of confirming pregnancy and take corresponding preventive measures against pregnancy earlier.

How can I accurately know whether I am pregnant, whether it is a true pregnancy or a false pregnancy, whether it is an ectopic pregnancy, or an intrauterine fetal fetal underdevelopment?

HCG (hcg gonadotropin) is the "pregnancy test" growth hormone that is known and most commonly used by obstetricians and gynecologists and nurses. It is composed of α and β dimers of glycoprotein. 1). However, the α-subunit is the growth hormone produced by the anterior pituitary gland. 2). The β-subunit is specific to HCG.

All HCG is produced by the transformed germ cells of the embryonic hCG. The main function of HCG is to stimulate progesterone, which is beneficial to the continuous metabolism of estrogen and corpus luteum to promote the formation of uterine decidua and make the embryo grow and develop perfectly. It is now believed that HCG is produced by the fusion of germ cell transition cells and germ cells. Appreciate rapidly during the first 8 weeks of pregnancy to maintain the pregnancy. After about 8 weeks of pregnancy, HCG levels gradually decrease until they are relatively stable at about 20 weeks.

All normal standard values: (1) The standard value of blood HCG is <10μg/L; (2) The standard value of β-HCG is <3.1μg/L.

The root of HCG levels in blood cells changes at different stages of pregnancy and among pregnant women. Since they are not the same for each person, there is no comparison and we can only compare ourselves.

Doctors say that HCG can rise to more than 2500IU/L during the 35-50 days of pregnancy. The β-HCG radioimmunoassay value of ordinary people is lower than 3.1. If it exceeds 5, the possibility of pregnancy can be considered. If it exceeds 10, pregnancy can be basically confirmed. The urine -HCG of women with multiple pregnancies is often higher than that of women with single pregnancies. Blood cell HCG should return to normal 9 days after giving birth or 25 days after an abortion. If this condition is not met, the possibility of abnormality should be considered. In addition to confirming whether a woman is pregnant, the hCG value in the blood can also distinguish whether it is an ectopic pregnancy. During the period when pregnancy is diagnosed based on the hCG value in the blood, the doctor will perform further examinations.

What is the range of hCG value for ectopic pregnancy? Diagnosis method: First, B-ultrasound examination, through B-ultrasound examination to determine the location of the gestational sac, and at the same time check whether it is an ectopic pregnancy; second, test the hCG value again every two days. Under normal circumstances of pregnancy, the hCG value will double every two days, that is, after two days, your hCG value should be in the range of 500-1000 under normal circumstances, indicating that your embryo is growing normally and is not an ectopic pregnancy; if the hCG value rises or decreases slowly, the probability of ectopic pregnancy is relatively large, and you should pay attention to it.

Whether it is an ectopic pregnancy or not, it is necessary to continuously check the HCG value to distinguish. In the early stages of pregnancy, the blood HCG test value in a normal pregnancy doubles, but ectopic pregnancy does not have this feature, which can be used as a basis for identification.