Many women find out what the D-dimer norms are during pregnancy only after they are registered. This study is optional, but it is recommended for all expectant mothers, especially those who are at risk for thrombosis.
D-dimer is the breakdown product of fibrinogen, a colorless protein that is directly involved in blood clotting. For a healthy person, the norms of this substance are considered to be 0,4-0,5 μg / ml. But the female body during the gestation of the baby is greatly rebuilt, so the amount of D-dimer may vary depending on the duration of pregnancy.
Norms of D-dimer during pregnancy determine the risk of thrombus formation.
This analysis can be done at will. But obstetricians recommend not to ignore such research. Indeed, thanks to him, you can learn about the risk of thrombus formation even in the early stages, which will greatly facilitate the treatment of this pathology in the future.
It is especially important to do an analysis for the amount of D-dimer during in vitro fertilization or IVF. Indeed, 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 stage of embryo implantation, and in the future, such studies need to be carried out every trimester.
Despite the fact that the analysis is not considered mandatory, it is still recommended to take it to expectant mothers at risk. These include women with the following pathologies:
- diabetes;
- diseases of the liver and cardiovascular system;
- severe toxicosis.
In addition, it is recommended to conduct an examination for women who have had a thrombosis before pregnancy. Weekly rates:
- from the first to the 13th – 0-0,55 μg / ml;
- from 13th to 21st – 0,2-1,4 μg / ml;
- from 21th to 29st – 0,3-1,7 μg / ml;
- from 29th to 35st – 0,3-3 μg / ml;
- from 35th to delivery – 0,4-3,1 μg / ml.
If the indicators of the substance greatly exceed the norm, then this indicates that blood clots are formed and destroyed in the body of the expectant mother. Such activity is fraught with the fact that it can cause miscarriage and heavy bleeding. In addition, too low indicators should cause concern. They say that the mother has impaired blood clotting.
Checking the level of D-dimer is not considered mandatory, but obstetricians still insist on conducting such studies. Indeed, thanks to them, it is possible to identify deviations in the process of blood clotting. And the sooner such pathologies are found, the easier the treatment will be.