Rh incompatibility II Erythroblastosis fetalis II Prevention with Rhogam
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5 سال پیش
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What is the Rh factor?The
What is the Rh factor?
The Rh factor is a protein that can be found on the surface of red blood cells. If your blood cells have this protein, you are Rh positive. If your blood cells do not have this protein, you are Rh negative.
How does a person get the Rh factor?
The Rh factor is inherited, meaning it is passed from parent to child through genes. The fetus can inherit the Rh factor from the father or the mother.
Can the Rh factor cause problems during pregnancy?
Yes. During pregnancy, problems can occur if you are Rh negative and your fetus is Rh positive. When a woman is Rh negative and her fetus is Rh positive, it is called Rh incompatibility.
What happens if there is Rh incompatibility during pregnancy?
If the blood of an Rh-positive fetus gets into the bloodstream of an Rh-negative woman, her body will understand it is not her blood and will fight it by making anti-Rh antibodies. These antibodies can cross the placenta and try to destroy the fetus’s blood. This reaction can lead to serious health problems and even death in a fetus or newborn.
How can my fetus’s blood get into my bloodstream?
During pregnancy, a woman and her fetus usually do not share blood. But sometimes a small amount of blood from the fetus can mix with the woman’s blood. This can happen during labor and birth. It also can occur with any of the following:
Amniocentesis or chorionic villus sampling (CVS)
Bleeding during pregnancy
Attempts before labor to manually turn a fetus from a breech presentation
Trauma to the abdomen during pregnancy
How can Rh problems affect the fetus during pregnancy?
Rh incompatibility can lead to a type of anemia in the fetus in which red blood cells are destroyed faster than the body can replace them. Red blood cells carry oxygen to all parts of the body. Without enough red blood cells, the fetus will not get enough oxygen. In some cases, the fetus can die from anemia.
Prevention
USe of RhoGAM- Antibodies against Rh factor
When is RhIg given?
It is given to Rh-negative women in the following situations:
At around week 28 of pregnancy
Within 72 hours after the birth of an Rh-positive baby
What if I have already made antibodies and my fetus is Rh positive?
In this case, the well-being of the fetus will be checked during the pregnancy. If tests show that the fetus has severe anemia, early delivery (before 37 weeks of pregnancy) may be necessary. Another option may be to give a blood transfusion through the umbilical cord while the fetus is still in the woman’s uterus. If the anemia is mild, the baby may be delivered at a normal time. After delivery, the baby may need a blood transfusion to replace blood cells
The Rh factor is a protein that can be found on the surface of red blood cells. If your blood cells have this protein, you are Rh positive. If your blood cells do not have this protein, you are Rh negative.
How does a person get the Rh factor?
The Rh factor is inherited, meaning it is passed from parent to child through genes. The fetus can inherit the Rh factor from the father or the mother.
Can the Rh factor cause problems during pregnancy?
Yes. During pregnancy, problems can occur if you are Rh negative and your fetus is Rh positive. When a woman is Rh negative and her fetus is Rh positive, it is called Rh incompatibility.
What happens if there is Rh incompatibility during pregnancy?
If the blood of an Rh-positive fetus gets into the bloodstream of an Rh-negative woman, her body will understand it is not her blood and will fight it by making anti-Rh antibodies. These antibodies can cross the placenta and try to destroy the fetus’s blood. This reaction can lead to serious health problems and even death in a fetus or newborn.
How can my fetus’s blood get into my bloodstream?
During pregnancy, a woman and her fetus usually do not share blood. But sometimes a small amount of blood from the fetus can mix with the woman’s blood. This can happen during labor and birth. It also can occur with any of the following:
Amniocentesis or chorionic villus sampling (CVS)
Bleeding during pregnancy
Attempts before labor to manually turn a fetus from a breech presentation
Trauma to the abdomen during pregnancy
How can Rh problems affect the fetus during pregnancy?
Rh incompatibility can lead to a type of anemia in the fetus in which red blood cells are destroyed faster than the body can replace them. Red blood cells carry oxygen to all parts of the body. Without enough red blood cells, the fetus will not get enough oxygen. In some cases, the fetus can die from anemia.
Prevention
USe of RhoGAM- Antibodies against Rh factor
When is RhIg given?
It is given to Rh-negative women in the following situations:
At around week 28 of pregnancy
Within 72 hours after the birth of an Rh-positive baby
What if I have already made antibodies and my fetus is Rh positive?
In this case, the well-being of the fetus will be checked during the pregnancy. If tests show that the fetus has severe anemia, early delivery (before 37 weeks of pregnancy) may be necessary. Another option may be to give a blood transfusion through the umbilical cord while the fetus is still in the woman’s uterus. If the anemia is mild, the baby may be delivered at a normal time. After delivery, the baby may need a blood transfusion to replace blood cells
5 سال پیش
در تاریخ 1398/04/20 منتشر شده
است.
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