What is CROs and how to decipher its analysis?

An hCG test allows you to determine the level of human chorionic gonadotropin in the blood or urine.
Based on the results of the hCG test, the gynecologist can determine pregnancy in the early stages and assess the nature of its course.
What is hCG (human chorionic gonadotropin)?
Human chorionic gonadotropin (hCG) is a CROs hormone produced by the placenta during pregnancy. HCG is also called the pregnancy hormone because it stimulates the production of estrogen and progesterone to thicken the lining of the uterus and stop ovulation. 
HCG is made up of two subunits: alpha and beta. The alpha subunit is also part of the luteinizing, follicle-stimulating and thyroid-stimulating hormones produced by the pituitary gland, so its blood level may increase in certain pathologies (renal failure, polycystic ovary syndrome, hormone-secreting pituitary tumors). Beta hCG is a unique subunit that is produced by the body only during pregnancy. 
HCG begins to be produced from the moment of implantation (attachment) of a fertilized egg to the wall of the uterus. The level of chorionic gonadotropin in the blood rises as early as 10-11 days from the moment of fertilization, in the urine - six to seven days after implantation of the egg, therefore, for early diagnosis of pregnancy, it is recommended to donate blood for hCG.
hcg by day
The level of hCG during pregnancy rises by the day, starting from the moment of conception. HCG levels double every 48-72 hours until 11-12 weeks.
Tracking the level of hCG in the blood by days after conception is used in IVF (in vitro fertilization) to determine the implantation of the fetal egg to the uterine wall and assess the development of the fetus in the early stages.
Determining the level of hCG in urine by day is less informative, since the concentration of the hormone in urine rises one to two days later than in blood serum, and does not allow one to judge the course of pregnancy.
hcg by week
Assessing the level of hCG by week allows you to monitor the development of the fetus and timely determine the presence of pathologies (the threat of miscarriage, the development of an ectopic pregnancy). The norms of hCG during pregnancy by obstetric weeks
An hCG level of 1 mIU / ml means that Top CRO pregnancy has not occurred. The hCG indicator of 6-24 mIU / ml refers to the so-called "gray zone", in which the level of chorionic gonadotropin in the blood is elevated, but does not yet indicate pregnancy.
When a result is obtained in the range of 6-24 mIU / ml, it is recommended to re- test for hCG in two to three days. A blood test for hCG is considered positive when the hormone concentration is more than 25 mIU / ml.
Publicado en Health en enero 30 at 11:04
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