Although a Useful Test in the Past, the Particle Agglutination

question 24

Multiple Choice

Although a useful test in the past, the particle agglutination assay for detection of H.influenzae type b capsular polysaccharide antigen is no longer reliable due to

• A)insufficiently high concentration of the organisms in clinical infections.
• B)Lack of sensitivity and specificity of the test procedure.
• C)Frequent use of antimicrobial therapy before collection of the specimen.
• D)Increased use of H.influenzae type b vaccination.