Which cold auto-antibody is found in virtually all sera, but at a low (most often undetectable) titer? 

A patient has reactive anti-K, anti-E, anti-M, and anti-Fyb present in his serum. Yikes! You decide to treat the panel cells with AET to see if there are any other antibodies present. Which antibody would be nonreactive with the AET panel? 

The main purpose of performing antibody titers on serum from prenatal immunized women is to: 

In a case of cold autoimmune hemolytic anemia, the patient’s serum would most likely react 4+ at immediate spin with:

The In(Lu) gene inhibits the Lutheran blood group system and also which of the following? 

At what age does I antigen become detectable on infant cells?

How long does it take for P1 antigen to be fully expressed?

In the process of identifying an antibody, a 2+ reaction with 3 of the 8 cell panel was observed after immediate spin. The reaction disappeared at 37oC and after AHG phase. The antibody is most likely: 

Which of the following is a characteristics of anti-i?

Which of the following antibodies is most likely to be involved in hemolytic disease of the fetus and newborn?