A rising antibody titer a few days apart indicates
A)the patient had a past case of the disease.
B)the patient has a current infection.
C)nothing, people always have antibodies in their serum.
D)All of these choices are correct.

Question

Quizplus · Accepted Answer

A rising antibody titer a few days apart indicates that the patient has a current infection. The titer reflects the production and increase of antibodies in response to the infection. Option A is incorrect because a past infection would result in a stable or decreasing antibody titer. Option C is incorrect because while people do have some level of antibodies in their serum, a rising titer is not a normal or expected finding. Option D is incorrect because not all of the choices are correct.

A Rising Antibody Titer a Few Days Apart Indicates