What term describes allergic reactions that occur within 10 to 15 minutes of exposure?

The term that accurately describes allergic reactions occurring within 10 to 15 minutes of exposure is immediate hypersensitivity. This type of reaction is mediated by immunoglobulin E (IgE) antibodies, which recognize and bind to allergens rapidly after exposure, leading to a quick release of inflammatory mediators such as histamine. This response is characteristic of conditions such as anaphylaxis and certain types of asthma, where symptoms can manifest almost immediately following exposure to the allergen.

In contrast, the other terms do not correctly fit this scenario. Rapid response reaction and quick sensitivity response are not standard terminology used in immunology to describe allergic reactions. Delayed hypersensitivity refers to reactions that develop over hours to days, typically involving T-cells and not IgE antibodies. Understanding these distinctions is crucial for recognizing the time frames and mechanisms that govern different types of allergic reactions.