During pregnancy carry out a number of special surveys and researches for diagnosing of possible diseases of the woman and a fruit. One of such researches is determination of the HGCh level in the pregnant woman's blood on the basis of which the conclusion about the state of health of future child is drawn.
Instruction
1. The Horionichesky Gonadotrophin of the Person (HGP) is hormone which begins to be produced by germ cover cages from the moment of attachment of the impregnated ovum to a uterus wall. The HGCh level is defined in blood or urine with which hormone in not changed look is emitted. Concentration of a gonadotrophin during pregnancy does not change linearly. At the non-pregnant woman the maintenance of a gonadotrophin is in limits of 0-25 mME/ml.
2. In the first 4-6 weeks of a gestation there is a sharp increase in this indicator twice each two days. In the first or second week of pregnancy the hormone content in blood varies within 25 — 300 honey/ml. The peak of concentration of HGCh is noted on 7-11 week after conception and 50000-200000 mME/ml makes. Further there is some decrease to the mME/ml level 20000 in the second trimester of pregnancy. These indicators remain almost invariable to the third trimester in which there is an insignificant increase in concentration of a horionichesky gonadotrophin.
3. Quantitative definition of HGCh in blue blood is carried out for 3-5 day of a delay of periods for confirmation or a denial of pregnancy and on 14-18 week for identification at pregnant pathology of a fruit. At interpretation of the received hormone indicators at blood test, it is necessary to define a pregnancy reference point. There are tables HGCh considering obstetric terms which are considered of date of the last periods other tables are based on terms from alleged conception.
4. For definition of concentration of a horionichesky gonadotrophin of the person carry out blood sampling from a vein in a procedural office of medical institution. The test is made in the morning on an empty stomach after observance of the diet excluding greasy and fried food, alcohol from a diet. It is necessary to report to the gynecologist before carrying out a research about intake of hormonal medicines.
5. Increase in level of hormone in blood can be observed at the wrong calculation of term of pregnancy, polycarpous pregnancy, the prolonged pregnancy, early toxicosis, a Down syndrome at future child, intake of hormonal medicines, diabetes at the woman. Decrease in concentration of HGCh can be caused by the wrong determination of term of a gestation, a premature research, threat of termination of pregnancy, ektopichesky pregnancy (extra-uterine pregnancy or uterine with atypical implantation of fetal egg), the stood (not developing) pregnancy, pre-natal death of a fruit, a pregnancy perenashivaniye, chronic placentary insufficiency.