A newborn is left at a hospital emergency department. The baby appears lethargic and slightly jaundiced. Laboratory work on the baby shows a positive DAT with polyspecific AHG and anti-IgG
The hemoglobin is 7.3 gm/dl, and the peripheral blood smear shows marked polychromasia, macrocytosis, and an increased number of nucleated RBCs. The bilirubin is 4.4 mg/dl. What do you suspect is the underlying cause of these results?
a. ABO HDFN
b. Autoantibody from the mother in baby's circulation
c. Normal postnatal findings for a newborn
d. Rh HDFN
Correct Answer: D
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