Question

Agglutination means

• A. Blood clotting
• B. Clumping of RBCs due to antigen and antibody reaction
• C. Haemolysis
• D. Blood clotting and haemolysis

Answer 1

The correct option is B Clumping of RBCs due to antigen and antibody reaction

Agglutination is a term which refers to clumping of particles. This is generally used in blood grouping in reference to mixing of an antigen with its corresponding antibody. Agglutination also occurs in cross-matching when the donor red blood cells and recipient's serum or plasma are incubated together to determine, if the blood types are incompatible.

Therefore, the correct answer is option B.