Early method of diagnostics of pregnancy – blood test on HGCh. It is pregnancy hormone which shows presence at an organism of the woman of chorial fabric (that is fabrics of a germinal petal). Determine pregnancy term by its size.
Blood test on a horionichesky gonadotrophin shows availability of hormone which allocates the additional covers or layers appearing in a uterus after conception. Hormone can be present at an organism not of the pregnant woman (after abortion it can be found in blood of 5-6 more days) or men (at oncological diseases of testicles). Women make the test on HGCh in several cases: in the absence of monthly, at threat of an abortion or the stood pregnancy, for prenatal diagnosis of malformations of a fruit, etc. Also the analysis is appointed for completeness of assessment of artificial abortion. The diagnostic value of the analysis in the early stages of pregnancy is justified – during this period neither the test for pregnancy, nor ultrasonography can precisely be defined whether there was a fertilization of an ovary. On the HGCh level it is possible to judge pregnancy terms – for every week the standard size is determined. For implementation of the analysis on a horionichesky gonadotrophin of the person it is necessary to take blood from a vein. It is the best of all to do it on a hungry stomach, early in the morning. If you have to make the test in other time of day, then it is necessary to sustain a break at 6 o'clock after you last time leaky ate. If at this time you take any medicamentous drugs, especially hormonal medicine, then it is necessary to report about it to the doctor. Obtaining results, as a rule, drags on for two-three days, but it is possible to try to agree in laboratory and to pay urgent diagnostics. Blood test on pregnancy is recommended to be carried out not earlier than for the third or fifth day of a delay of periods. You can specify result, having carried out the repeated analysis two or three days later – in the first months pregnancy the HGCh level grows in blood every day and reaches the peak by 11th week therefore several indicators can authentically confirm the occurred pregnancy. After that it is necessary to visit the gynecologist, and several weeks later to make the first ultrasonography. There are house tests for definition of pregnancy on the HGCh level in urine. But the reliability of such tests is much lower as in urine the necessary concentration of hormone collects in later terms.