Help the development of the site, sharing the article with friends!
Please let me know what are the beta-hCG standards at different stages of pregnancy? When to do the test, what concentration means pregnancy?
Human Chorionic Gonadotropin (hCG) is produced by trophoblast cells. It can be detected in the blood after blastocyst implantation, around 9-10 days after fertilization (fertilization of the egg is not synonymous with intercourse!).
Marking it in the first stage of pregnancy is used to detect pregnancy early, and repeat tests to assess the development of pregnancy. Lack of hCG increase in subsequent tests may be associated with death of the pregnancy or its incorrect location (ectopic pregnancy).
hCG is a glycoprotein hormone composed of two chains (subunits) of alpha and beta. The alpha subunit is identical to that of the TSH, LH and FSH hormones. The beta subunit is specific to hCG and therefore it is best to test it, not all of the hCG.
During pregnancy, hCG stimulates the proper development and function of the corpus luteum, and in the placenta it is involved in the synthesis of steroid hormones. The concentration of hCG increases rapidly from the beginning of pregnancy, peaking between 9 and 12 weeks of pregnancy, then decreases, and from around 20 weeks of gestation it remains constant at around 20% of the maximum concentration.
The range of norms for individual weeks of pregnancy is always provided on each test result for this hormone, because it depends on the method of determination and may differ between laboratories.
Remember that our expert's answer is informative and will not replace a visit to the doctor.
Barbara GrzechocińskaAssistant professor at the Department of Obstetrics and Gynecology at the Medical University of Warsaw. I accept privately in Warsaw at ul. Krasińskiego 16 m 50 (registration is available every day from 8 a.m. to 8 p.m.).
More advice from this expert
Sea algae in hypothyroidism [Expert's advice]Urine blood and urine tests and menstruation [Expert advice]Non-surgical treatment of uterine myoma [Expert's advice]Amenorrhea and a thin endometrium at 18 [Expert Advice]Disease or disorder of the work of wheelbarrow [Expert's advice]Do uterine fibroids threaten pregnancy? [Expert advice]Will fibroids prevent you from getting pregnant? [Expert advice]Can a myoma be removed during pregnancy? [Expert advice]Should I have curettage after a miscarriage? [Expert advice]Does bronchitis affect the HCG result? [Expert advice]Could uterine fibroids be responsible for anemia? [Expert advice]Could Neurological Disorders Come From Thyroid Disease? [Expert advice]Desmoxan a Euthyrox [Expert's tip]Esmya or surgery for uterine fibroids? [Expert advice]Euthyrox and insulin and scanty periods [Expert advice]What kind of contraception to use in type 1 diabetes? [Expert advice]Low neutrophils, elevated lymphocytes [Expert Advice]Spotting from uterine curettage and birth control pills [Expert advice]Evra and Letrox patches [Expert tip]Endometrial hyperplasia in the perimenopausal period [Expert's advice]The effectiveness of birth control pills in celiac disease [Expert advice]Marshmallow syrup for pregnancy cough [Expert's advice]A tattoo with a properly healed thyroid gland [Expert Advice]Contrast tomography and reduced TSH [Expert's advice]Determining the due date of a diabetic patient [Expert's advice]Removal of fibroids and uterus - before or after menstruation? [Expert advice]During pregnancy I was diagnosed with thyroid disease [Expert's advice]Ultrasound result - follicle and uterine mucosa "as pregnant" [Expert Advice]Getting pregnant and thyroid insufficiency [Expert's advice]Change in the volume of the pituitary gland [Expert Advice]