Question

a second encounter with an allergen that causes a response is called the
multiple choice
○ allergic dose
○ desensitizing dose
○ provocative dose
○ sensitizing dose
○ hypersensitivity dose

Explanation:

To solve this, we recall allergy - related terminology. The provocative dose is defined as the second (or subsequent) encounter with an allergen that triggers an allergic response. Let's analyze the other options:

• "Allergic dose" is not a standard term for this concept.
• "Desensitizing dose" is used in procedures to reduce sensitivity, not for triggering a response on re - exposure.
• "Sensitizing dose" is the first exposure that makes the body sensitive to the allergen, not the second exposure that causes a response.
• "Hypersensitivity dose" is not a recognized term for this specific situation.

Answer:

C. provocative dose