John, a Peace Corps Worker in the Country of Mali

question 25

Multiple Choice

John, a Peace Corps worker in the country of Mali in Africa, was in a car accident while traveling through a rural area.He was treated at a tiny rural hospital, and due to his loss of blood, he required a transfusion.John has B- blood type and has never received a transfusion before.Which statement is correct regarding this scenario?

• A)He can be given types O or B, no matter whether Rh- or Rh+.At this point in time, he does not have anti-Rh antibody.O has no antigens on the blood cells, so he is also safe to receive that type in addition to his own B type.
• B)He can safely receive O- blood even though he makes anti-A antibodies.
• C)He can be given A+ blood type in addition to B+.Rh- means that he makes no antibody to Rh.
• D)The preferred blood type to give John, in addition to his own B type blood, would be AB.Both types of blood have the B antigen on the cells, so they would correspond to his own antigens.As for Rh, he can receive only Rh- blood since he would have a reaction against Rh+.