What is the progesterone level at 5 weeks of pregnancy?

Progesterone is actually a kind of progestin secreted by women's bodies after pregnancy. It is very important for women. If the progesterone value is too low after pregnancy, not only the growth and development of the fetus will be affected, but also miscarriage may occur. Progesterone is very important for women. At different stages of pregnancy, the size of the progesterone mole is also different. What is the progesterone value at 5 weeks of pregnancy?

Progesterone levels at 5 weeks of pregnancy

The normal value for women during the follicular phase is 0.6-1.0nmol/L; the normal value during the ovulation phase is 2.40-9.40nmol/L; and the normal value after ovulation is 20.8-103.0nmol/L. Normal reference value of progesterone: HCG (IU/L) according to gestational weeks, 0.2-1 week 5-50, 1-2 weeks 50-500, 2-3 weeks 100-5000, 3-4 weeks 500-10000, 4-5 weeks 1000-50000, 5-6 weeks 10000-100000, 6-8 weeks 15000-200000, 2-3 months 10000-100000.

Progesterone test effect

(1) Immune protection. Progesterone has immune protection and can suppress immune responses. When a woman is in a normal pregnancy, progesterone increases, which prevents the embryo from being rejected by the mother and maintains the pregnancy.

(2) Blastocyst implantation. During ovulation, under the action of progesterone secreted by the corpus luteum, the endometrium transforms from the proliferative phase to the secretory phase, making the endometrium receptive to embryo implantation.

(3) Inhibit uterine contractions. Progesterone can change the permeability of the uterine cell membrane to ions, putting the membrane in a super-permeable state, thereby reducing the excitability and conductivity of the uterine muscle, and reducing the sensitivity of the uterine muscle to various stimuli, thereby preventing the uterus from expelling the embryo and playing a role in preserving the fetus.

(4)Others. Progesterone can increase the secretion of fetal insulin by increasing maternal blood sugar levels, thereby promoting fetal growth. Progesterone can also promote the synthesis of certain proteins in the uterus, which is beneficial to the maintenance of pregnancy.

Reference hcg value for 5 weeks of pregnancy

The normal value of blood hCG is <10μg/L, and the normal value of β-hCG is <3.1μg/L. β-hCG is a part of hCG. Generally, the β-hCG radioimmunoassay value of normal women is less than 3.1. The absolute values ​​of serum hCG vary greatly during different periods of pregnancy and between pregnant women. They are not comparable with each other and can only be compared within themselves. During the first 3 months of pregnancy, hCG levels approximately double every 2.2±0.5 days. 1000-50000 at 4-5 weeks of pregnancy. hCG can rise to greater than 2500IU/L 35-50 days after pregnancy. If it is lower than this value, there may be a risk of threatened abortion.

Blood hcg test function

1. Pregnancy test. The pregnancy is determined by measuring the level of hCG in urine or blood. After a normal woman becomes pregnant, the hCG level in her blood increases rapidly.

2. Judgment of abnormal pregnancy:

(1) Ectopic pregnancy (ectopic pregnancy), that is, the hCG level in the blood is lower than the normal intrauterine pregnancy level, but higher than the hCG level when not pregnant.

(2) Abnormal pregnancy (hydatidiform mole): the blood hCG value is usually higher than the normal pregnancy value for the corresponding gestational age.

(3) One of the bases for whether to continue the pregnancy preservation treatment is that if the hCG level continues to decrease, it means that the pregnancy preservation should not be continued. If the hCG level continues to rise, it means that the pregnancy preservation is successful.

3. Diagnosis and treatment of miscarriage. If the abortion is not complete, such as there is still placental tissue remaining in the uterus, the hCG test may still be positive; in the case of complete miscarriage or stillbirth, hCG will turn from positive to negative, so the blood hCG value can be used as a reference for suction treatment.