Herpes Simplex Virus 1 Antibody, Serum (Qualitative/Quantitative Quantitative Detection)
This test checks for antibodies to the herpes simplex virus type 1 (HSV-1), which can help determine past or current infection. Antibodies are proteins your immune system makes in response to exposure to the virus.
["This test helps identify if you’ve been exposed to HSV-1, which causes cold sores or oral herpes."]
Key facts at a glance
- LOINC
- 5846-1
- Short code
- HSV1 Ag Spec Ql IF
- Synonyms
- HSV1 Ag Spec Ql IF
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- if
- 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 antibodies specific to HSV-1, which your body produces after infection. These antibodies can indicate whether you’ve had an HSV-1 infection at some point, even if you don’t currently have symptoms. The test does not directly measure the virus itself.
Why Might You Need This Test?
A doctor may recommend this test if you have recurring cold sores, a history of oral herpes, or if you’re being evaluated for conditions linked to HSV-1 exposure, such as certain neurological complications. It can also be part of screening for individuals at higher risk of transmission.
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 a sensitive immunoassay method to detect HSV-1 antibodies. Results are typically available within a few days.
What Do the Results Mean?
Positive results mean you likely have developed antibodies to HSV-1, suggesting past infection. Negative results mean no detectable antibodies were found, but this does not rule out possible exposure or infection. Results should always be interpreted by a healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: This test is crucial for diagnosing past HSV-1 exposure, guiding treatment decisions for recurrent infections, and assessing risk for transmission. It helps differentiate between active infections and past immunity, though it cannot confirm current viral activity.
Short name
HSV-1 Antibody Test
Frequently asked questions
Can this test tell me if I currently have an active HSV-1 infection?
How long after exposure might I get positive results?
Does this test differentiate between HSV-1 and HSV-2?
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