Hemolytic disease of the newborn (HDN) occurs when

A. an Rh-negative woman is carrying an Rh-negative fetus.
B. an Rh-positive woman is carrying an Rh-negative fetus.
C. an Rh-positive woman is carrying an Rh-positive fetus.
D. an Rh-negative woman is carrying an Rh-positive fetus.


Answer: D

Anatomy & Physiology

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