Question

Correctly match the type of Hypersensitivity reaction with its respective Example. 

 

• A. P-3; Q-4; R-2; S-1
• B. P-4; Q-3; R-1; S-2
• C. P-4; Q-3; R-2; S-1
• D. P-2; Q-3; R-4; S-1

Hint:

Hypersensitivity reactions are classified into four types based on the mechanism of immune response. Type I is immediate, Type II is antibody-mediated, Type III involves immune complexes, and Type IV is delayed-type hypersensitivity.

Answer 1

The Correct Option is C

In this question, we match the hypersensitivity reaction types with examples:

Step 1: Type I Hypersensitivity
Type I hypersensitivity is an immediate hypersensitivity reaction, such as systemic anaphylaxis, where an allergen triggers a rapid immune response.
Thus, \( \boxed{P-4} \).

Step 2: Type II Hypersensitivity
Type II hypersensitivity involves antibody-mediated destruction of cells, such as chronic urticaria, which involves mast cell degranulation.
Thus, \( \boxed{Q-3} \).

Step 3: Type III Hypersensitivity
Type III hypersensitivity involves the formation of immune complexes, leading to diseases such as the Arthus reaction, which involves localized immune complex deposition.
Thus, \( \boxed{R-2} \).

Step 4: Type IV Hypersensitivity
Type IV hypersensitivity is a delayed-type hypersensitivity reaction, such as the tuberculin reaction, which involves T-cell activation and inflammation.
Thus, \( \boxed{S-1} \).

Thus, the correct matching is:
\( P-4 \)
\( Q-3 \)
\( R-2 \)
\( S-1 \)

Final Answer:
The correct answer is \( \boxed{C} \).