VDRL is an example of-: (A) Slide agglutination, (B) Tube agglutination, (C) Slide flocculation, (D) Tube flocculation
Answer is C. Option 3 Option 1, 2 Slide flocculation test: VDRL and RPR tests used for diagnosis of syphilis. 1. Slide agglutination: To confirm the identification and serotyping of bacterial colonies growni n culture. 2. Tube agglutination is routinely used for: Typhoid fever (Widal test): Detects Ab against both H (flagellar) and O (somatic) Ag Acute brucellosis (Standard agglutination test) Blood grouping (ABO and Rh grouping) Option 4 Tube flocculation test: Kahn test used previously for syphilis.