What is a D-dimer?

D-dimer is the product of the decomposition of fibrinogen- a colorless protein that takes a direct part in the coagulability of the blood. For a healthy person, the norms of this substance are 0.4-0.5 μg / ml. But the female body during pregnancy is strongly rebuilt, so the amount of D-dimer may vary depending on the period of pregnancy.norms of dimer during pregnancyThe norms of D-dimer in pregnancy determine the riskthrombosis. Photo: GettyThis analysis can be carried out as desired. But midwives recommend not to ignore such a study. Because he can learn about the risk of thrombosis at an early stage, which further greatly facilitates the treatment of this pathology. It is especially important to do an analysis of the amount of D-dimer in in vitro fertilization or IVF. After all, in this case, with the help of hormones, the work of the ovaries is stimulated, which leads to the activation of hemostasis. The first analysis is recommended to be done at the embryo embryo stage, and further studies should be conducted every trimester.

Norms of D-dimer by week

Despite the fact that the analysis is not considered mandatory, it is still recommended that it be passed on to future mothers who are at risk. These include women with the following pathologies:

  • diabetes;
  • liver disease and cardiovascular system;
  • severe toxicosis.

In addition, it is recommended that women who have had thrombosis before pregnancy should be screened. Norms by week:

  • from the first to the 13th - 0-0,55 mkg / ml;
  • from the 13th to the 21st - 0.2-1.4 mcg / ml;
  • from 21st to 29th - 0,3-1,7 mkg / ml;
  • from 29th to 35th - 0.3-3 mcg / ml;
  • from the 35th and before delivery - 0.4-3.1 μg / ml.

If the parameters of the substance strongly exceed the norm,then it shows that in the body of the future mother formed and destroyed clots. Such activity is fraught with the fact that it can cause miscarriage and severe bleeding. In addition, fears should be too low. They say that the mother has impaired blood coagulability. To check the level of D-dimer is not considered mandatory, but nevertheless obstetricians insist on carrying out similar studies. Because they can detect abnormalities in the process of blood coagulation. And the sooner such pathologies are discovered, the easier it will be to treat.