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Epstein-Barr Virus DNA, Qualitative, Probe, Whole Blood

Published: August 9, 2026Updated: August 16, 2026

This test detects the genetic material (DNA) of Epstein-Barr virus in a whole blood sample. It is used to help determine whether the virus is present, especially in people with weakened immune systems.

Quick summary

["A positive result means EBV DNA was detected in the blood, while a negative result means it was not found at detectable levels."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
108216-3
Short code
EBV DNA Spec NAA+probe-Log IU
Synonyms
EBV DNA Spec NAA+probe-Log IU
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Epstein-Barr Virus?

Epstein-Barr virus (EBV) is a very common virus that belongs to the herpes family. Most people become infected at some point in their lives, often during childhood or as young adults. Infection may cause little or no illness, or it can cause infectious mononucleosis ("mono"), with symptoms such as fever, sore throat, and swollen lymph nodes. After infection, the virus remains in the body in a dormant state and can reactivate, particularly when the immune system is weakened.

Why Is This Test Ordered?

This test looks for EBV DNA in the blood to see whether the virus is actively present. It may be ordered when a person has symptoms suggesting an EBV infection, when a healthcare provider needs to check on viral activity in someone with a weakened immune system, or when monitoring is needed after an organ or stem cell transplant. It can help distinguish active viral presence from past exposure.

How the Test Works

The test uses a laboratory technique called a probe-based method, which is designed to detect viral DNA with good specificity. A sample of whole blood is collected, and the laboratory processes it to look for genetic material from EBV. Because the result is qualitative, it reports whether EBV DNA is detected or not detected rather than giving an exact quantity.

What the Results Mean

A "detected" result means that EBV DNA was found in the blood sample, suggesting the virus is present. A "not detected" result means the virus was not found at the level the test can identify. Results are interpreted alongside symptoms, medical history, immune status, and other tests. A qualitative result does not measure how much virus is present; your healthcare provider will explain what the finding means for your situation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Detection of EBV DNA in whole blood can indicate active viral presence, which is clinically important in people who are immunocompromised and at risk for more serious EBV-related complications. Because this is a qualitative test, it does not provide a viral load, so quantitative testing or additional evaluation may be needed depending on the clinical context. Results should always be interpreted by a healthcare provider in light of the full clinical picture.

Short name

EBV DNA Qualitative

Frequently asked questions

Does a detected result mean I have mono?
Not necessarily. A detected result means EBV DNA was found in the blood, which can occur with active infection, reactivation, or in certain immunocompromised states. Infectious mononucleosis is typically diagnosed using symptoms and other blood tests such as a heterophile antibody test or EBV-specific antibodies. Your healthcare provider will interpret the result in context.
Can this test tell how much virus is in my blood?
No. This is a qualitative test, so it reports whether EBV DNA is detected or not detected, not the amount. If your provider needs to know the level of virus, a quantitative EBV DNA test may be ordered instead.
Do I need to fast or prepare for this test?
Usually no special preparation is needed for a blood test of this kind. However, always follow any specific instructions from your healthcare provider or the laboratory, since preparation requirements can vary.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy