Physiological Adaptation Q 16

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A male client with a gunshot wound requires an emergency blood transfusion. His blood type is AB negative. Which blood type would be the safest for him to receive?

  

     A. AB Rh-positive

     B. A Rh-positive

     C. A Rh-negative

     D. O Rh-positive

    

    

Correct Answer: C. A Rh-negative

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Human blood can sometimes contain an inherited D antigen. Persons with the D antigen have Rh-positive blood type; those lacking the antigen have Rh-negative blood. It’s important that a person with Rh-negative blood receives Rh-negative blood.

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Option A: A person with Rh-negative blood should also receive Rh-negative blood.

Option B: If Rh-positive blood is administered to an Rh-negative person, the recipient develops anti-Rh agglutinins, and subsequent transfusions with Rh-positive blood may cause serious reactions with clumping and hemolysis of red blood cells.

Option D: This blood type is still not compatible because it is Rh-positive.

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