What are the uses of hcg pregnancy blood test

Everyone knows about the hcg blood test for pregnancy. In fact, the hcg value does not just indicate whether you are pregnant or not. So what are the uses of hcg pregnancy blood test? Next, this article will introduce the usefulness of hcg blood test during pregnancy for your reference only. Friends who want to know more about this can continue reading! Please see the detailed introduction below.

HCG (human chorionic gonadotropin) is the "pregnancy test" hormone that is familiar and most commonly used by obstetricians and gynecologists. It is composed of glycoproteins of α and β dimers. But the α-subunit is common to all anterior pituitary hormones. The β-subunit is specific to hCG. The complete hCG is produced entirely by the syncytiotrophoblast of the placental chorion. Its main function is to stimulate the corpus luteum, which is beneficial to the continuous secretion of estrogen and progesterone, so as to promote the formation of uterine decidua and make the placenta grow and mature. It is now believed that hCG is produced by trophoblast transitional cells and syncytial cells. It increases rapidly during the first 8 weeks of pregnancy to maintain the pregnancy. After about 8 weeks of pregnancy, hCG gradually decreases until it reaches a relative stability around 20 weeks.

What are the uses of hcg pregnancy blood test? The hcg pregnancy test has the following uses:

1. The pregnancy blood test hcg can accurately determine early pregnancy: elevated serum hCG is very common in early pregnancy in women of childbearing age. After a normal person becomes pregnant, the hCG level in the blood increases rapidly, then gradually decreases, and drops to a very low level at 160-180 days of pregnancy, but is still significantly higher than normal.

2. The hCG blood test during pregnancy can accurately determine whether the baby is a twin: The hCG blood value can also accurately determine whether the baby is a twin based on its value. In a twin pregnancy, the serum hCG level is more than double that of a single baby.

3. The hCG blood test during pregnancy can accurately determine ectopic pregnancy: Although ectopic pregnancy occurs outside the uterus and is an abnormal pregnancy, it is still considered pregnancy. During ectopic pregnancy, the pregnant woman's serum hCG is lower than the normal pregnancy value of the same period, but higher than the hCG level when not pregnant.

4. The hCG blood test during pregnancy can indicate threatened miscarriage: If the serum hCG value of a woman in early pregnancy is significantly low or shows a downward trend during continuous monitoring, it indicates threatened miscarriage.

5. The pregnancy blood test hcg can determine whether the abortion is successful: after the artificial abortion operation, if the serum hCG value is still significantly higher than normal or shows an upward trend, it indicates that the operation was unsuccessful.

The above is an introduction to the uses of hcg blood test during pregnancy. I believe that after reading the above introduction, you already know the uses of hcg pregnancy blood test. From the above introduction, we can know that in addition to proving whether there is pregnancy, the hcg blood test is also a criterion for measuring twins and ectopic pregnancy! Therefore, the hcg blood test during pregnancy is very important for pregnant friends!