What is the purpose of using a 'gel test' in immunohematology?

A To detect the presence of alloantibodies in a patient's serum ✓
B To identify the ABO blood group of a patient
C To determine the presence of complement in a patient's serum
D To enhance the reactivity of Rh antibodies in a crossmatch test

Explanation

The gel test is used to detect the presence of alloantibodies in a patient's serum. It is a sensitive and specific test that can help identify alloantibodies that may be present in a patient's serum.

Source

AABB website
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high