A mismatch between mother and fetus of what factor causes HDN?
A) Hb
B) Hgb
C) ANA
D) Rh

Question

Quizplus · Accepted Answer

HDN (hemolytic disease of the newborn) is typically caused by a mismatch between the mother and fetus in the Rh factor. If the mother is Rh-negative and the fetus is Rh-positive, the mother's immune system may attack the fetal red blood cells, leading to HDN. ABO incompatibility can also lead to HDN, but it is not the most common cause. Hb and Hgb (both referring to hemoglobin) are not typically involved in the development of HDN, and ANA (antinuclear antibodies) are not directly related to the disorder.

A Mismatch Between Mother and Fetus of What Factor Causes