What is the purpose of using a saline control in the indirect antiglobulin test?

A To detect warm autoantibodies
B To detect cold autoantibodies
C To remove excess antibodies from the test sample
D To verify the integrity of the test reagents and equipment ✓

Explanation

The saline control is used to verify that the test reagents and equipment are functioning properly, by checking for any non-specific reactions or contamination.

Source

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