Herpes Simplex Virus Antibody Screening (Serum) by Immunoassay
This test checks for antibodies to herpes simplex virus (HSV), which can help determine if you’ve ever been exposed to or infected with HSV. Antibodies are proteins your immune system makes in response to past infection.
["This test helps identify past exposure to HSV, which may affect future health decisions or treatment planning."]
Key facts at a glance
- LOINC
- 5854-5
- Short code
- HSV Ag Spec Ql IA
- Synonyms
- HSV Ag Spec Ql IA
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia
- 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 Does This Test Measure?
The test detects specific antibodies (immunoglobulins) produced by your immune system in response to HSV. These antibodies are evidence that your body has encountered the virus at some point, even if you don’t currently have active symptoms.
Why Might You Need This Test?
Healthcare providers may order this test if you have symptoms suggestive of HSV infection (e.g., sores, pain, or unusual rashes), a history of recurrent infections, or if you’re at higher risk (e.g., sexual history, immune conditions). It can also be used for screening in certain populations.
How Is the Test Performed?
A blood sample is drawn from a vein in your arm. The serum (liquid part of blood) is then tested using an immunoassay method to detect HSV-specific antibodies. This process is quick and typically done in a lab.
What Are the Possible Results?
Results are qualitative (positive or negative) and indicate whether antibodies were found. A positive result suggests past exposure, but it does not confirm current infection. A negative result means no detectable antibodies were found at the time of testing.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A positive HSV antibody test confirms past exposure to HSV, which can influence decisions about future medical care, vaccination, or preventive measures. It does not rule out current infection, as antibodies may take weeks to develop after exposure. This test is often used alongside clinical evaluation and other tests for diagnosis.
Short name
HSV Antibody Screen
Frequently asked questions
What does a positive result mean?
Can this test tell me if I have an active HSV infection right now?
Is there any preparation needed before this test?
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