What is the purpose of using a 'minor' crossmatch in blood banking?

A To detect ABO incompatibility between donor and recipient
B To detect IgG antibodies against donor red blood cells ✓
C To assess the viability of stored red blood cells
D To evaluate the risk of a graft-versus-host disease reaction

Explanation

A minor crossmatch involves testing the recipient's serum against donor red blood cells to detect any IgG antibodies that may be present, which can help identify potential incompatibilities.

Source

Blood Banking Guidelines
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Hard MEDICAL Confidence: medium