Given the following ABO phenotyping data:FORWARD TypeAnti-A: 2+mf (mixed field)Anti-B: 0REVERSE TypeA1 cells: 0B cells: 3+What could be a plausible explanation for this discrepancy?

Interpret these ABO/Rh reactions:FORWARD TypeAnti-A: 3+Anti-B: 0Anti-D: 3+REVERSE TypeA1 cells: 1+B cells: 3+

Which of the following donor units must be re-typed by the transfusion service before being added to the inventory?

An anti-E was identified in a patient recently transfused. What other Rh system antibody should be investigated?

Of the following, which is known to demonstrate antigen variability?

A Caucasian individual’s red cells gave the following reactions with antisera:D+ C+ E- c+ e+The most probable genotype is

In the gene interaction form of weak D, expression of the D antigen is limited because

The most common ABO group is ______ while _______ is the least common.

Mixed-field reactions can be observed in the following methodology:

Why is incubation at 37 C omitted in the direct antihuman globulin test?