One drop of Coombs' control cells was added to a negative antibody screen. No agglutination was observed after centrifugation. What course of action is taken?
A) Report negative result
B) Report inconclusive result
C) Repeat the test
D) Add one more drop of check cells and re-centrifuge

Question

Quizplus · Accepted Answer

The lack of agglutination with Coombs' control cells indicates a possible error in the test procedure, so the test should be repeated to ensure accurate results.

One Drop of Coombs' Control Cells Was Added to a Negative