Which of the following blood group systems is associated with an increased risk of hemolytic disease of the fetus and newborn (HDFN)?

A Kidd blood group system ✓
B MNS blood group system
C P blood group system
D Vel blood group system

Explanation

The Kidd blood group system is associated with an increased risk of HDFN due to the potential for anti-Jk(a) or anti-Jk(b) antibodies to be formed.

Source

ISBT Science Series
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium