The infection control nurse is presenting an inservice for the staff on the immune reaction of the body. The nurse understands that the clumping effect that occurs when an antibody acts like a cross-link between two antigens is termed what?
A) Agglutination
B) Cellular immune response
C) Humoral response
D) Phagocytic immune response
Ans: A
Feedback: Agglutination refers to the clumping effect occurring when an antibody acts as a cross-link between two antigens. Cellular immune response, the immune system's third line of defense, involves the attack of pathogens by T-cells. Humoral response is the immune system's second line of defense, often termed the antibody response. The phagocytic immune response, or immune response, is the system's first line of defense, involving white blood cells that have the ability to ingest foreign particles.
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