Kidd Blood Group System

This Medical Laboratory Science lesson in Blood Bank supports laboratory science learning and laboratory interpretation for medical laboratory students and professionals.

Interpret Kidd antigens Jka/Jkb with emphasis on dosage, antibody evanescence, and delayed hemolytic transfusion reaction (DHTR) risk.

Intermediate26 min read15 sectionsBlood Bank
Section 1 of 150%

Learning Objectives

Getting started

Section 1 of 15

Learning Objectives

Learning Objectives

Section: Learning Objectives

Each objective below describes a competency you will apply at the immunohematology bench, interpretation first, memorization second.

  • Describe Jka and Jkb antigens and explain why Kidd antibodies are clinically significant despite sometimes weak serology
  • Apply dosage concepts when interpreting panel reactions that are stronger with homozygous Jk(a+b−) or Jk(a−b+) cells
  • Link antibody evanescence and anamnestic responses to DHTR risk and the importance of historical antibody records