Difficulty: Medium
Average Score: 67%
Simulated
A toddler is diagnosed with sickle cell anemia. Her mother is four months pregnant with her second child. The mother asks if there is any chance the new baby will have sickle cell anemia. She says that neither she nor her husband has sickle cell anemia. What is the best response for the nurse to make?
Correct answer
C
Rationale
Sickle cell anemia is autosomal recessive. If both parents are carriers (trait), there is a 25% chance each child will have the disease.