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Herpes Simplex Virus Antibody, Qualitative (Serum/Plasma)

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

This test checks for antibodies to herpes simplex virus (HSV), which can help determine if you’ve ever been exposed to the virus or if you have an active infection.

Quick summary

["This test helps identify past or current HSV exposure, guiding treatment and management decisions."]

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

Key facts at a glance

LOINC
31413-8
Short code
HSV Ab CSF-aCnc
Synonyms
HSV Ab CSF-aCnc
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects antibodies produced by your immune system in response to HSV. Antibodies are proteins that recognize and fight foreign substances, like viruses. If you have antibodies, it suggests your body has encountered HSV at some point, even if you’re not currently experiencing symptoms.

Why It’s Done

Doctors may order this test if you have symptoms like sores, fever, or unusual rashes that could be caused by HSV, or if you have a history of HSV infections. It can also be used to confirm a diagnosis in cases where symptoms are unclear or to monitor treatment effectiveness.

Sample Collection and Preparation

A blood sample is taken from a vein in your arm. The blood is processed to separate serum or plasma, which is then tested for HSV antibodies. No special preparation is needed before the test.

What to Expect Before the Test

You may feel slight discomfort when the needle is inserted, but most people tolerate the procedure well. If you have a blood disorder or are on blood-thinning medication, let your doctor know before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results indicate past or current HSV infection. Antibodies alone don’t confirm an active infection without additional testing (like viral culture or PCR). This test is useful for screening, diagnosis support, and managing chronic infections, but it doesn’t replace direct viral detection for active outbreaks.

Short name

HSV Antibody Test

Frequently asked questions

How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on your lab’s processing time.
What does a positive result mean?
A positive result means your immune system has detected HSV antibodies, suggesting you’ve been exposed to the virus. This doesn’t always mean you’re currently infected or experiencing symptoms. Further testing may be needed to confirm active infection.
Can I get this test at home?
No, this test requires a blood sample collected by a healthcare professional in a clinical setting. Home collection kits are not available for this specific antibody test.
  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