Diagnostics·Diagnostics
Monospot test
Informed by recognized medical guidance
Overview
The Monospot test is a quick blood test that helps doctors check if you have infectious mononucleosis (also called glandular fever). Mononucleosis is an illness caused by the Epstein-Barr virus (EBV). The test looks for special antibodies (proteins your immune system makes to fight the virus) in your blood. If those antibodies are found, it suggests you may have mononucleosis.
Key facts
- The Monospot test is also called the heterophile antibody test.
- It gives results in about one hour, so it is often used in clinics or emergency rooms.
- The test is most reliable when you have had symptoms for at least one week.
- A negative Monospot test does not always rule out mononucleosis, so your doctor may order other tests.