An antibody screen is performed, and all three tubes are negative after adding AHG. Check cells are added, and the tubes are centrifuged. No agglutination occurs after the addition of check cells. What is the next course of action?

Question

Quizplus · Accepted Answer

The lack of agglutination after adding check cells suggests that the AHG reagent was not added or was neutralized. Repeating the antibody screen ensures proper procedure and reagent function.

An Antibody Screen Is Performed, and All Three Tubes Are