Question

Which laboratory department tests antigen antibody reactions?

• A. Hematology
• B. Microbiology
• C. Biochemistry
• D. Immunology

Hint:

Think of Immunology = “study of immunity” → antigen-antibody reactions.

Answer 1

The Correct Option is D

Step 1: Recall principle of antigen-antibody reactions.
Antigen-antibody reactions include agglutination, precipitation, ELISA, complement fixation, and immunofluorescence. These tests are vital for diagnosis of infectious diseases and immune disorders.
Step 2: Match with lab departments.
- Hematology: Deals with blood cells, coagulation studies, not antigen-antibody reactions.
- Microbiology: Identifies microbes, sometimes uses antigen detection, but not the central lab for immune reactions.
- Biochemistry: Analyzes metabolic products, enzymes, hormones, not immune testing.
- Immunology: Specializes in antigen-antibody reactions, autoimmune testing, allergy testing, and vaccine response.
Step 3: Conclusion.
The correct department for antigen-antibody reactions is Immunology.