Indirect Antihuman Globulin Test (IAT)

The Indirect Antihuman Globulin Test (IAT) is a serological assay used to detect unexpected antibodies in patient serum that may cause hemolytic transfusion reactions. This advanced topic is essential for tertiary learners in Zambia pursuing degrees in Blood Transfusion Science, Immunology, or Medical Laboratory Science. It covers the principle, procedure, and clinical applications of IAT, including antibody screening, crossmatching, and titration studies. Students will explore factors affecting IAT sensitivity, such as incubation time, temperature, and the use of enhancement media like LISS or albumin. Understanding IAT is critical for identifying clinically significant alloantibodies, ensuring transfusion compatibility, and investigating hemolytic disease of the newborn. Mastery of this test prepares Zambian university students for examinations and for performing complex immunohematology tests in reference laboratories and blood banks, enhancing national blood safety protocols.