A nurse is reinforcing teaching about Rho(D) immunoglobulin to a client who is pregnant. Which of the following findings can an Rh incompatibility cause?
A.
Transient clotting difficulties
B.
Congenital hypothermia
C.
Hypobilirubinemia
D.
Hydrops fetalis
The Correct Answer and Explanation is:
The correct answer is D. Hydrops fetalis.
Explanation:
Rh incompatibility occurs when a pregnant woman with Rh-negative blood carries a fetus with Rh-positive blood. This condition arises because the Rh factor, a protein on the surface of red blood cells, differs between the mother and the fetus. If the mother’s immune system detects Rh-positive cells from the fetus as foreign, it may produce antibodies against these cells, leading to hemolysis, or the destruction of the fetal red blood cells.
One of the severe outcomes of Rh incompatibility is hydrops fetalis, which is a serious condition characterized by the accumulation of fluid in two or more fetal compartments (such as the abdomen, chest, or under the skin). This condition is the result of severe anemia caused by the destruction of fetal red blood cells, leading to heart failure and increased pressure in the fetal blood vessels. Hydrops fetalis is associated with a high risk of stillbirth or significant morbidity for the newborn if not managed promptly and effectively.
To prevent Rh incompatibility complications, Rho(D) immunoglobulin (commonly known as RhoGAM) is administered to Rh-negative pregnant women. This medication works by preventing the mother’s immune system from producing antibodies against Rh-positive blood cells. It is typically given during pregnancy at around 28 weeks of gestation and again within 72 hours after delivery if the baby is Rh-positive. It may also be administered after events that could cause fetal blood to mix with maternal blood, such as trauma, miscarriage, or certain procedures.
The other options listed—transient clotting difficulties, congenital hypothermia, and hypobilirubinemia—are not typical consequences of Rh incompatibility:
- Transient clotting difficulties are not a direct result of Rh incompatibility.
- Congenital hypothermia is unrelated to Rh factor issues.
- Hypobilirubinemia refers to lower-than-normal bilirubin levels, which is contrary to the high bilirubin levels typically seen in cases of Rh incompatibility due to increased hemolysis.
In summary, Rh incompatibility can lead to severe complications such as hydrops fetalis, making it crucial to manage and prevent this condition effectively with Rho(D) immunoglobulin.