Lab test
Mono Test (Mononucleosis) - Blood Testing
Mono Test (Mononucleosis) - Blood Testing can be ordered without a referral, and this guide covers what to expect. This blood test helps clinicians evaluate for infectious mononucleosis, commonly known as mono.
What this test is
The Mono test looks for antibodies produced by your body in response to an infection, most often caused by the Epstein-Barr virus (EBV). It is used to help diagnose mononucleosis.
What it measures
- Heterophile antibodies — antibodies that can indicate a recent infection
- EBV viral capsid antigen (VCA) IgM — antibodies that suggest a recent Epstein-Barr virus infection
- EBV VCA IgG — antibodies that indicate a past or current Epstein-Barr virus infection
- EBV nuclear antigen (EBNA) — antibodies that typically appear later in an Epstein-Barr virus infection
What the test involves
This test requires a blood sample. A healthcare professional will draw blood from a vein in your arm.
Why it is often ordered
A clinician may order this test if you have symptoms suggestive of mono, such as fatigue, fever, sore throat, or swollen lymph nodes. It helps confirm or rule out this common viral illness.
Preparation
No special preparation is usually needed for this test. Please follow any specific instructions provided by the laboratory where you will have your blood drawn.
How results are reported
Results are typically available within a few business days and will be sent to your ordering clinician. The interpretation of your results will be made by your clinician, considering your individual health status and laboratory-specific reference ranges.
Before you go
- Fasting requirements
- Sample collection time
- How to receive results
FAQ
Frequently asked questions
What are the common symptoms of mononucleosis?
Common symptoms include extreme fatigue, fever, sore throat, headache, swollen lymph nodes in your neck and armpit, and sometimes a rash or swollen spleen. Symptoms can vary and may last for weeks or months.
How is mononucleosis spread?
Mononucleosis is typically spread through saliva, which is why it's sometimes called 'the kissing disease.' It can also spread through sharing drinks, food, or utensils.
Can I have mono without symptoms?
Yes, some people, particularly children, can have an Epstein-Barr virus infection without showing any symptoms. Others may have very mild symptoms that are not recognized as mono.
How long does it take to recover from mono?
Recovery times vary greatly. Some people feel better within a couple of weeks, while others may experience fatigue for several months. It is important to rest and avoid strenuous activity, especially contact sports, to prevent spleen rupture.
Related
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