A measure of antibody level in the plasma is
A) the primary response.
B) the secondary response.
C) antigen concentration.
D) body temperature.
E) the antibody titer.

Question

Quizplus · Accepted Answer

The measure of antibody level in the plasma is called the antibody titer. This is a quantitative assessment of the concentration of antibodies in a serum sample, which reflects the immunological response to an antigen. The antibody titer is commonly used to diagnose and monitor infectious diseases, vaccine efficacy, and immune status. Therefore, option E is the correct answer. The other options are not related to the measurement of antibody level in the plasma.

A Measure of Antibody Level in the Plasma Is