What issue may arise for an infant if a pregnant mother is Rh negative and her blood type is A?

What issue may arise for an infant if a pregnant mother is Rh negative and her blood type is A?

• A. Type O.
• B. Rh positive.
• C. Delivered preterm.
• D. Type B, Rh negative.

Answer: (B)

When a pregnant mother has an Rh-negative blood type (in this case, type A), there's a potential risk for Rh incompatibility if the fetus inherits an Rh-positive blood type from the father. This can lead to a situation where the mother's immune system recognizes the Rh-positive blood cells of the fetus as foreign and produces antibodies against them. This condition, known as hemolytic disease of the newborn (HDN), can result in severe consequences for the infant, including jaundice, anemia, and in extreme cases, fetal death. The option that states the infant may be Rh positive is correct because, if the mother's blood type is A and she is Rh-negative, the father must be Rh-positive for the fetus to inherit the Rh-positive factor. Thus, there is a significant likelihood that the infant could be born Rh-positive if the father does not share the mother's Rh-negative status. The other options do not accurately describe this Rh incompatibility scenario. For example, type O refers to a different blood group unrelated to the Rh factor, while being delivered preterm does not directly relate to the mother's Rh-negative status. Lastly, the infant being type B and Rh-negative would only occur if the genetic contribution from both parents allowed for such a combination, which

When a pregnant mother has an Rh-negative blood type (in this case, type A), there's a potential risk for Rh incompatibility if the fetus inherits an Rh-positive blood type from the father. This can lead to a situation where the mother's immune system recognizes the Rh-positive blood cells of the fetus as foreign and produces antibodies against them. This condition, known as hemolytic disease of the newborn (HDN), can result in severe consequences for the infant, including jaundice, anemia, and in extreme cases, fetal death.

The option that states the infant may be Rh positive is correct because, if the mother's blood type is A and she is Rh-negative, the father must be Rh-positive for the fetus to inherit the Rh-positive factor. Thus, there is a significant likelihood that the infant could be born Rh-positive if the father does not share the mother's Rh-negative status.

The other options do not accurately describe this Rh incompatibility scenario. For example, type O refers to a different blood group unrelated to the Rh factor, while being delivered preterm does not directly relate to the mother's Rh-negative status. Lastly, the infant being type B and Rh-negative would only occur if the genetic contribution from both parents allowed for such a combination, which