Question

Match the test in Group I with its application in Group II 

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

Hint:

Diagnostic tests are often remembered as: LAL test $⇒$ endotoxin, Weil-Felix $⇒$ rickettsia, Oakley-Fulthorpe $⇒$ antigen-antibody specificity, complement fixation $⇒$ antibody detection.

Answer 1

The Correct Option is A

Step 1: Oakley-Fulthorpe test. A double diffusion method in agar for antigen-antibody reaction $⇒$ (2).
Step 2: Limulus amoebocyte lysate test. Detects endotoxins in Gram-negative bacteria $⇒$ (3).
Step 3: Weil-Felix reaction test. Used for diagnosing rickettsial infections $⇒$ (4).
Step 4: Complement-fixation test. Can detect specific classes of antibodies like IgM $⇒$ (1).
Therefore, correct match = P-2, Q-3, R-4, S-1.