What is the purpose of using a 'pre-warm' technique in blood banking for crossmatching?

A To enhance the reactivity of cold agglutinins
B To reduce the risk of hemolysis due to cold antibodies
C To improve the detection of warm autoantibodies
D To increase the sensitivity of antibody detection
The pre-warm technique is used to reduce the risk of hemolysis due to cold antibodies by warming the patient's serum before crossmatching.
Transfusion Medicine journal
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium