After becoming pregnant, female friends need to go to a gynecological hospital for check-ups at every stage of pregnancy. Routine check-ups can help understand the physical condition of the pregnant woman and the development of the fetus. Hcg and progesterone can directly reflect the physical condition of the pregnant woman. Hcg and progesterone vary according to each person's physical condition, and will also change in each stage of pregnancy, so pregnant mothers should go to a regular hospital for these routine examinations. Normal reference value of HCG: The normal value of blood HCG is <10μg/L, and the normal value of β-HCG is <3.1μg/L. The absolute values of serum HCG vary greatly at different stages of pregnancy and between pregnant women, that is, they are different from person to person and are not comparable, and can only be compared within themselves. Generally, non-pregnant women’s blood HCG is <100IU/L. During the first 3 months of pregnancy, HCG levels approximately double every 2.2±0.5 days. Urine-HCG (HCG semi-quantitative method): non-pregnant women <25IU/L, 40 days of pregnancy >5000IU/L, 60-70 days of pregnancy >(8-32)×104IU/L (urine HCG level is highest in the early morning, close to serum level). Serum HCG levels during normal pregnancy HCG (IU/L) in weeks of pregnancy 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 10,000-100,000 6-8 weeks 15,000-200,000 February-March 10,000-100,000 HCG examination method and its clinical significance Currently, the following three measurement methods are commonly used in clinical practice: enzyme-linked immunosorbent assay (ELISA) screening method, sandwich enzyme immunoassay method, and immune colloidal gold method. These methods have good sensitivity, low cost, and fast detection, and are widely used in clinical practice. The examination of HCG is of great significance for the diagnosis of early pregnancy, and has certain value in the diagnosis, differentiation and course observation of pregnancy-related diseases, trophoblastic tumors and other diseases. Diagnosis of early pregnancy: HCG can rise to greater than 2500IU/L 35-50 days after pregnancy. It can reach 80 million IU/L in 60-70 days. The urine HCG level in women with multiple pregnancies is usually higher than that in women with single pregnancies. |
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