A type-A Rh-negative infant has spherocytes on his blood film and a weakly positive direct antiglobulin test.What antibody will most likely be found on the infant's red cells?

Question

Quizplus · Accepted Answer

This occurs in infants whose mothers make an IgG anti-A (in this case)or anti-B at a low level.The disease is usually mild because most ABO antibodies are IgM and do not cross the placenta because of their large size.

A Type-A Rh-Negative Infant Has Spherocytes on His Blood Film