What is the key purpose of a cross-matching test before a blood transfusion?

Prepare for the Veterinary III CFE Exam with focused study material and interactive quizzes. Use detailed flashcards and multiple choice questions for a comprehensive review. Equip yourself with the knowledge and confidence needed to excel in your study sessions and excel in your assessment!

Multiple Choice

What is the key purpose of a cross-matching test before a blood transfusion?

The key purpose of cross-matching is to ensure the recipient’s antibodies won’t attack the donor’s red blood cells during transfusion. By mixing the recipient’s serum with donor red cells and watching for clumping (agglutination) or cell destruction (hemolysis), you detect alloantibodies that could cause a transfusion reaction. If the test is compatible, the transfusion is likely safe; if not, you’d choose donor cells without those offending antigens. This goes beyond simply determining blood type, which identifies ABO/Rh compatibility, by specifically confirming that the recipient’s antibodies will not react with the donor’s cells.

The key purpose of cross-matching is to ensure the recipient’s antibodies won’t attack the donor’s red blood cells during transfusion. By mixing the recipient’s serum with donor red cells and watching for clumping (agglutination) or cell destruction (hemolysis), you detect alloantibodies that could cause a transfusion reaction. If the test is compatible, the transfusion is likely safe; if not, you’d choose donor cells without those offending antigens. This goes beyond simply determining blood type, which identifies ABO/Rh compatibility, by specifically confirming that the recipient’s antibodies will not react with the donor’s cells.

More practice questions