A client asks the nurse what a "hypersensitivity response" is. The nurse best answers the client's question by responding:
1. "It's why some people sneeze and have itchy, watery eyes when they're around cats and some people don't.".
2. "It's the reaction your body shows when it overreacts to a substance it isn't familiar with.".
3. "Are you familiar with the term allergy or being allergic?"
4. "Are you interested because you feel you may have the problem?"
"It's why some people sneeze and have itchy, watery eyes when they're around cats and some people don't.".
Rationale: While an immune hypersensitivity response occurs when the immune system does not maintain self-tolerance, in other words when it overreacts to the presence of a foreign antigen, the nurse's best response is an example that the client is most likely able to understand. Asking whether the client is familiar with related terms or has a suspicion of being affected is not directly addressing the client's question. Hypersensitivity response is not a reaction to an unfamiliar substance.
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