When is Blood Incompatibility Injection Done During Pregnancy?

When is Blood Incompatibility Injection Done During Pregnancy?

The issue of blood incompatibility during pregnancy is a situation that is wondered by every married couple but is not fully understood. If the blood type of the expectant mother is Rh (-) and the blood type of the father-to-be is Rh (+), Rh incompatibility comes into play. In the content we prepared; You can find answers to many questions you wonder, such as does blood incompatibility harm the baby during pregnancy, when is the blood incompatibility injection done during pregnancy, is the second or third pregnancies risky for blood incompatibility.

What is Blood Incompatibility?

When the mother's blood group is Rh (-), the father-to-be's blood group is Rh (+), or vice versa, Rh incompatibility comes into play. This does not always pose a problem for the baby. But if the blood type of the baby in the womb is the blood type of the father-to-be, then a conflict and interaction may develop between the mother and the baby in the womb and the mother's body may activate the defense mechanism. Because the baby's red blood cells, which are different from the mother-to-be, are perceived by the mother's body as a foreign substance.

Effects of Blood Incompatibility During Pregnancy on the Baby

If there is a blood incompatibility between the mother and the baby and this blood is mixed for some reason, some risks may occur for the baby. The mother's body produces various antibodies against the baby's blood cells, which it perceives as foreign matter. If these antibodies are in the IgL type, they pass to the baby through the placenta and bind to the blood cells. As the antibodies attached to the blood cell cannot pass through the baby's organs such as the spleen and liver, blood cell destruction begins. Therefore, the baby becomes bloodless day by day, water accumulates in the body cavities, and in the last stage, he may die in the womb due to heart failure.

Higher Risk in Second Pregnancy

In case of maternal and paternal blood incompatibility, second and subsequent pregnancies are found to be more risky than first pregnancies. Because in first pregnancies, the baby may be born until the mother's body produces antibodies. However, since the mother's body will produce antibodies until the second and subsequent pregnancies, subsequent pregnancies are more risky. However, thanks to the needles and treatment methods developed today, it is possible to have healthy and trouble-free pregnancies.

In What Week Is Injection For Blood Incompatibility Done During Pregnancy?

If a Rh incompatibility is detected between the mother-to-be and father-to-be in blood tests performed before pregnancy, Anti-Rh immunoglobulins, popularly known as the 'incompatibility needle', are used. These drugs contain antibodies against the Rh (+) blood group. These antibodies are the same as those produced by the Rh (-) mother who had previously been exposed to Rh (+) blood. When the drug is injected into the mother's buttocks, it passes into the mother's blood and finds all cells that carry the Rh (+) antigen. The mother's defense mechanism breaks down Rh (+) antigens without seeing them for the moment and prevents the first contact from occurring. Medicines known as mismatch injections are usually given at 28 weeks after the indirect coombs test (IDC). After birth, the baby has the opportunity to learn the blood group.