What is the significance of detecting and identifying hemolysins in patient sera during pre-transfusion testing?

A To determine the presence of alloantibodies ✓
B To assess the risk of transfusion-related acute lung injury
C To evaluate the likelihood of hemolytic disease of the newborn
D To predict the response to blood transfusion therapy

Explanation

Detecting and identifying hemolysins in patient sera is crucial to determine the presence of alloantibodies, which can cause hemolysis and other adverse reactions during blood transfusion.

Source

Technical Manual of the American Association of Blood Banks
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high