An immunoassay is performed in the following manner to look for an antigen (Ag)in the patient serum: Patient serum + labeled Ag + known antibody (Ab)are added together and incubated.Unbound material is washed off.The amount of labeled Ag is then measured.What assay is performed?

Question

Quizplus · Accepted Answer

This is a description of a competitive immunoassay. In this assay, patient serum antigen (Ag) competes with labeled antigen for binding sites on a known antibody (Ab). The amount of labeled antigen bound is inversely proportional to the concentration of antigen in the patient's serum.

An Immunoassay Is Performed in the Following Manner to Look