Motherhood / / May 05, 2016
human chorionic gonadotropin, or in abbreviated form - HCG - a hormone produced by the cells of the embryonic membrane of the embryo after the attachment of a fertilized egg to the uterine mucosa.In most cases the development of HCG the body of a pregnant woman begins after 7-10 days after fertilization.The highest concentration of hormone found in the blood and urine, these body fluids and become objects of study for pregnancy.
Blood HCG allows to show many details "piquant situation": suspect (and identified in conjunction with other diagnostic methods) ectopic, and missed abortion, threatened abortion, etc.Thus, hCG analysis confirms or denies the presence of suspected pregnancy and allows some deviation in its flow.The hormone can be easily "catch" and at home with a conventional pregnancy test, which can be purchased at any pharmacy.Test - a kind of indicator responds to an increase of hCG in urine.If all the conditions described on the packaging, the accuracy of the "home" rapid analysis is 98-99%.
Norma hCG Pregnancy
We found out: after the implantation of a fertilized egg chorion (embryonic shell of the future fetus) begins to produce gonadotropin.But why?Quite simply, the embryo is trying to survive in the hostile environment of the maternal organism.HCG "makes" a woman hormones to rebuild in its sole discretion, that all processes in the body of the future mother were sent to the maintenance and development of a new life.
In addition, the hormone suppresses the immune cells to "safe guard" not mixed germ with the "enemy" and not destroy it.Therefore, with the onset of pregnancy, hCG begins to produce at lightning speed.The first 2-3 months normally every two days the hormone level is doubled, reaching its peak at 7-10 weeks, after which it decreased gradually, stopping for 20-30 weeks and remained at approximately the same level until the end of pregnancy.
Rate of hCG in a proper course of pregnancy, depending on the period of:
1 to 2 weeks: 30 - 300 IU
2 to 3 weeks: 1 500 - 5000 IU
3 to 4 weeks: 10 000 -30,000 IU
5 to 8 weeks: 50 000 - 200 000 IU
8 to 10 weeks: 20 000 - 100 000 IU
10 to 14 weeks: 20 000 - 60 000 IU
15 to 25 weeks: 10000 - 30 000 IU
25 to 35 weeks: 10 000 - 60 000 IU
Just note that the indicators are normal may differ slightly from those given above (it all depends on the individual physiological characteristics of the patient), and therefore analyze and compare all the numbers shouldonly the attending physician.Do not do it yourself!
hCG when ectopic pregnancy
Ectopic pregnancy - is a real blow to the mental and physical health of women.The nature of it is not fully understood.Until now, no one doctor could not identify the exact causes of pathological phenomena.The only reliable way to detect ectopic pregnancy in women has been and remains ultrasound.However, thanks to the timely analysis of hCG can be suspected ovarian or tubal embryo attachment.As a rule, the level of hCG when an ectopic pregnancy or a little understated at first is normal, but soon gonadotropin growth dynamics changes dramatically down.However, guaranteed to assert the occurrence of abnormal pregnancy can roofing after the ultrasound.
hCG with missed abortion
regresses (non-viable or non-developing) the pregnancy is the cessation of fetal development of the embryo, the fetus to put it simply dying for unknown reasons.Most often it occurs in the first trimester, but it happens and so that the child ceases to exist, and at a later date, termination of pregnancy (abortion), as a rule, does not occur.This marked increase in false uterus as fertilized egg is not peeled off, and the presence of features inherent in pregnancy (they gradually disappear).After the death of the fetus hCG levels begin to fall rapidly, and rapid tests - to give a negative result.
Elevated HCG pregnancy
In most cases, elevated levels of hCG does not indicate any abnormalities during pregnancy, it can also become a companion of a strong toxicosis or of multiple pregnancy in women.However, if other indicators of the body and tests are very different from the norm - is cause for concern.In this case, an increased hCG warns us about such serious diseases as diabetes or preeclampsia.In addition, high levels of gonadotropin may occur during hormone replacement therapy (particularly when receiving progestogens).In combination with low estriol, and AFP (Advanced triple test), elevated hCG may indicate a higher risk of having a child with Down syndrome.
Low HCG pregnancy
Low levels of gonadotropin in the blood is a terrible signal and often indicates:
- regresses pregnancy (fetal death);
- ectopic pregnancy;
- delay embryo development;
- the threat of miscarriage, spontaneous abortion;
- perenashivanie child (over 40 weeks);
- chronic placental insufficiency.
note once more that the numerical value of hCG is not constant and may vary slightly in different laboratories.This factor depends on many things, so the results of analysis at any stage should be evaluated only gynecologist.