What is the purpose of using a 'neutralization technique' in the context of blood grouping and crossmatching?

A To remove excess antibodies from the serum
B To inactivate complement proteins in the serum
C To detect the presence of hidden antibodies in the patient's serum ✓
D To enhance the reactivity of antibodies with red blood cells

Explanation

The neutralization technique is used to detect the presence of hidden antibodies in the patient's serum, which can cause an adverse reaction 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