What is the purpose of using a 'masking' technique in resolving ABO blood group discrepancies?

A To detect weak antibodies
B To remove excess plasma proteins
C To inactivate complement proteins
D To neutralize interfering substances that may be masking the true blood group ✓

Explanation

The 'masking' technique is used to resolve ABO blood group discrepancies by neutralizing interfering substances that may be masking the true blood group, allowing for accurate identification of the blood group antigens.

Source

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