What is the name of the test used to determine the presence of antibodies against red blood cell antigens in a patient's serum?

A Indirect Coombs test ✓
B Direct Coombs test
C Crossmatch test
D Blood typing test

Explanation

The indirect Coombs test is used to detect the presence of antibodies against red blood cell antigens in a patient's serum.

Source

American Association of Blood Banks (AABB) guidelines
Hematology Hematology: Blood Grouping and Crossmatching Hematology: Blood Grouping and Crossmatching Medium MEDICAL Confidence: high