Correct Option
The correct option is Erythroblastosis foetalis.
Explanation
The condition described arises from Rh incompatibility (Rhesus factor mismatch) between a pregnant mother and her foetus. This is a specific type of immune response where maternal antibodies attack fetal red blood cells.
Detailed Analysis
- Erythroblastosis foetalis: This condition occurs when an Rh-negative mother carries an Rh-positive foetus. During the delivery of the first Rh-positive child, the mother is sensitized to the Rh antigen and produces anti-Rh antibodies. In subsequent pregnancies with an Rh-positive foetus, these maternal antibodies cross the placenta and destroy the fetal red blood cells (haemolysis). This results in severe anaemia and jaundice in the newborn, a condition termed Erythroblastosis foetalis.
- Haemophilia neonatorum: Haemophilia is a sex-linked recessive genetic disorder affecting blood clotting. It is inherited and not caused by maternal-fetal blood incompatibility.
- Thalassaemia minor: This is a hereditary genetic disorder involving defects in haemoglobin synthesis. It is unrelated to the Rh factor or immune incompatibility.
- Anaemia gravidarum: This term generally refers to anaemia occurring in the mother during pregnancy (gestational anaemia), not the specific haemolytic condition of the newborn.
Key Takeaway: Erythroblastosis foetalis is a haemolytic disease of the newborn caused by the placental transfer of anti-Rh antibodies from an Rh-negative mother to an Rh-positive foetus.