An Antibody to Js^b Was Identified in a Patient Scheduled

An antibody to Js^b was identified in a patient scheduled for elective surgery at a later date.What is the best approach to finding compatible blood?

A) Contact the rare donor registry since Js^b negative units are rare.
B) Request that family members be tested to determine if they share the same phenotype.
C) Screen donors from the black population since being Js^b negative is common in blacks.
D) A and B are correct.