A plasma inhibition study was performed on a patient whose serum sample reacted +/– on all panel cells at AHG. Three sets of A, B, C tubes were set up according to the following scheme:Tube A had 2 drops of patient serum and 1 drop of Ch(a+) Rg(a-) plasma.Tube B had 2 drops of patient serum and 1 drop of Ch(a– Rg(a+) plasma.Tube C had 2 drops of patient serum and 1 drop of Ch(a+) Rg(a+) plasma.Screening cells were added in triplicate and incubated for 60 minutes at 37°C. The antiglobulin test was performed. All three A tubes reacted at 2+, and the B and C tubes were negative. What antibody is indicated?

Why is dosage inconsistent in the Duffy blood group?

The indicator cells used to detect antibodies in a solid phase technology are:

What criteria must be met for an antigen to be assigned to a blood group system?

The seven Gerbich antigens are located on:

What is the etiology of dialysis-associated anti-N?

Which statement regarding HDV is true?

The “look-back” process includes notifying donors of abnormality with:

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?

When performing an antibody screen by gel technology, the following steps are eliminated: