True statement about antistreptolysin ‘O’ titer is

A. In normal people the titre is > 200

B. In acute glomerulonephritis the titre is low

C. ASO titre > 200 indicate rheumatic fever

D. It is poorly antigenic

Correct Answer: In acute glomerulonephritis the titre is low

Description: ASO (Anti Streptolysin 'O') titer:Estimation of antibody against streptolysin is a standard serological test for retrospective diagnosis of streptococcal infectionASO titer> 200 is indicative of prior streptococcal infectionRaised after throat infection onlyIn acute glomerulonephritis the titer is low

Category: Microbiology

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