An 18 year old girl has infectious mononucleosis. Which of the following Heterophile Antibody results would you expect to see?
a. No agglutination of horse RBC's after absorption with either guinea pig or beef RBC antigen.
b. No agglutination with horse RBC's.
c. No agglutination of horse RBC's after absorption with guinea pig antigen.
d. No agglutination of horse RBC's after absorption with beef RBC antigen



Answer :

Answer:

In the context of infectious mononucleosis, the presence of heterophile antibodies can be detected through the Paul-Bunnell test. These antibodies are produced in response to infection with the Epstein-Barr virus, which is commonly associated with mononucleosis.

When an 18-year-old girl has infectious mononucleosis, the expected Heterophile Antibody result would be:

b. No agglutination with horse RBC's.

Explanation:

Heterophile antibodies are antibodies that can agglutinate (clump together) red blood cells from different species, such as horse RBCs. In the presence of infectious mononucleosis, these antibodies are produced and can cause agglutination specifically with horse RBCs. Therefore, the absence of agglutination with horse RBCs would indicate a positive result for heterophile antibodies, which is characteristic of infectious mononucleosis.

Explanation: