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Herpes Simplex Virus Type 1 Antibody, Qualitative (Serum/Plasma)

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

This test checks for antibodies to the herpes simplex virus type 1 (HSV-1), which can help determine past or current infection with this virus.

Quick summary

["This test helps identify if you’ve been exposed to HSV-1, which can cause cold sores or other infections."]

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

Key facts at a glance

LOINC
31410-4
Short code
HSV1 Ab CSF-aCnc
Synonyms
HSV1 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

Why This Test Might Be Ordered

Your healthcare provider may order this test if you have symptoms like cold sores, recurrent mouth ulcers, or if you’ve been exposed to someone with HSV-1. It may also be used in certain diagnostic evaluations or for monitoring in specific medical situations.

What the Test Measures

The test detects antibodies in your blood that your immune system produces in response to HSV-1. These antibodies indicate past infection or ongoing immune response, but they do not confirm an active infection without additional clinical correlation.

What to Expect Before the Test

No special preparation is needed for this test. You may have a blood draw, urine sample, or other fluid collected depending on the lab’s protocol. If you’re taking medications or have recent illnesses, let your provider know.

What to Expect After the Test

Results are typically qualitative (yes/no) and may take several days to weeks to receive. Your provider will discuss the results in the context of your symptoms and medical history.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Positive results suggest past exposure to HSV-1, meaning your body has mounted an immune response. However, this does not always mean you are currently infected. Active infection would require clinical symptoms (e.g., sores) and possibly additional testing. This test is not used to diagnose acute infection but can be useful in certain research or screening contexts.

Short name

HSV-1 Antibody Test

Frequently asked questions

How long does it take to get results from this test?
Results are usually available within a few days to several weeks, depending on the lab’s processing time. Your healthcare provider will contact you once they have the results.
Can this test detect an active HSV-1 infection?
No, this test only detects antibodies, which indicate past exposure or immune response. For diagnosing an active infection, your provider may use clinical symptoms, physical examination, or other tests.
Is there anything I should avoid before the test?
No specific preparations are required, but inform your provider about any medications or recent illnesses to ensure accurate results.
  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