OSMT (Ontario Society of Medical Technologists) Practice Exam

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What does the process of agglutination involve?

Thinning of blood cells
Clumping of blood cells
Decrease in red cell pigment
Increase of red cell size

The correct answer is: Clumping of blood cells

Agglutination involves the clumping of blood cells. This process occurs when antibodies bind to antigens on the surface of cells, causing them to stick together. This can be observed in blood typing tests where antibodies react with specific antigens on red blood cells, leading to visible clumping. Thinning of blood cells, decrease in red cell pigment, and increase of red cell size are not accurate descriptions of the process of agglutination.