Which of the following is a test to determine the presence of soluble antigens in a patient's saliva?
A)direct agglutination reaction
B)passive agglutination reaction
C)immunofluorescence
D)neutralization reaction
E)precipitation reaction

Question

Quizplus · Accepted Answer

The precipitation reaction is used to determine the presence of soluble antigens in a patient's saliva. In this reaction, a patient's saliva is mixed with a known antiserum, and if there is antigen-antibody binding, a visible precipitate will form. This is a simple and quick way to diagnose certain infections, such as streptococcal infections.

Which of the Following Is a Test to Determine the Presence