Human Herpesvirus 7 (HHV-7) DNA in Whole Blood by Nucleic Acid Amplification Probe
This test detects the presence of genetic material from Human Herpesvirus 7 (HHV-7) in your blood. It helps identify if you have an active infection with this virus.
["This test can help diagnose or monitor HHV-7 infection, which may be linked to certain immune system conditions or infections."]
Key facts at a glance
- LOINC
- 86544-4
- Short code
- HHV7 DNA Bld Ql NAA+probe
- Synonyms
- HHV7 DNA Bld Ql NAA+probe
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- probe-amp-tar
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test looks for specific genetic sequences (DNA) of HHV-7 in your blood. These sequences are unique to the virus and are detected using a sensitive molecular method that amplifies and identifies them. This is often done through a process called polymerase chain reaction (PCR) combined with a probe for confirmation.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms suggestive of HHV-7 infection, such as fever, fatigue, or other signs of illness, particularly if you have a weakened immune system. It may also be used to monitor HHV-7 levels in people with conditions like HIV or other immune disorders.
Sample Collection and Preparation
A small amount of your blood will be drawn into a tube. This sample is then processed to extract the DNA, which is analyzed for the presence of HHV-7 genetic material. The test does not require fasting or special preparation beyond standard blood draw procedures.
What to Expect Before the Test
No special preparation is needed. However, inform your healthcare provider about any medications you are taking, especially those that affect your immune system or blood clotting.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
HHV-7 is a virus that can cause infections, particularly in individuals with weakened immune systems. Detecting HHV-7 DNA can help confirm an active infection, which may guide treatment decisions. While HHV-7 is generally less severe than other herpesviruses like CMV or HSV, it can still contribute to symptoms in immunocompromised individuals or may be associated with certain opportunistic infections.
Short name
HHV-7 DNA Test
Frequently asked questions
How long does it take to get the results of this test?
What does a positive result mean?
Can HHV-7 be treated or managed?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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