What is the mono spot test used to detect?

The mono spot test is specifically designed to detect the presence of heterophile antibodies that are typically associated with infectious mononucleosis, which is often caused by the Epstein-Barr virus (EBV). When a person is infected with this virus, their immune system responds by producing these antibodies, which the mono spot test seeks to identify.

This test is valuable for confirming a diagnosis of infectious mononucleosis in patients presenting with symptoms such as fever, sore throat, fatigue, and swollen lymph nodes. The rapid nature of the test allows healthcare providers to quickly determine whether further investigations or treatment are necessary for the patient.

The other options do not relate to the purpose of the mono spot test; allergies, chronic fatigue syndrome, and bacterial infections require different testing methods for proper diagnosis and management.