Under what circumstance would a direct antiglobulin test be negative in the presence of a hemolytic process?
A) Bacterial contamination of the unit
B) Medications administered with the unit
C) Red blood cell unit transfused quickly through a leukocyte reduction filter
D) All of the above

Question

Quizplus · Accepted Answer

A direct antiglobulin test detects hemolysis caused by alloantibodies.The test would be negative if the red blood cell unit was hemolyzed before or during transfusion,due to bacteria,medications,or physical damage from a filter.

Under What Circumstance Would a Direct Antiglobulin Test Be Negative