An EDTA Sample Is Preferred Over a Clotted Sample for Performing

An EDTA sample is preferred over a clotted sample for performing DAT testing because:

A) hemolysis is less likely to occur in a smaller EDTA tube.
B) complement coating is better detected in an EDTA tube.
C) the EDTA prevents complement binding in-vitro.
D) there is less likely to be fibrin in the EDTA tube.