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Herpes Simplex Virus Type 1 Antibody, Serum (Qualitative or Semi-Quantitative)

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

This test detects antibodies to the herpes simplex virus type 1 (HSV-1), which causes cold sores and can also affect other parts of the body. Antibodies indicate past infection or immunity.

Quick summary

["This test helps determine if you’ve been exposed to HSV-1 or if your body has developed immunity."]

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

Key facts at a glance

LOINC
7908-7
Short code
HSV1 Ab Ser-aCnc
Synonyms
HSV1 Ab Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Is Done

Doctors may order this test if you have symptoms of HSV-1 infection (like cold sores), if you’ve been exposed to someone with HSV-1, or if you’re planning pregnancy and want to check for past infection. It can also be used to monitor immunity in certain medical conditions.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample from a simple venipuncture (blood draw). Results are qualitative (yes/no) or semi-quantitative (approximate levels), meaning they describe presence or relative amount rather than exact numbers.

What the Results Mean

Positive results indicate the presence of HSV-1 antibodies, suggesting past infection or immunity. Negative results mean no detectable antibodies, so you may not have been infected or your immune system cleared it. False negatives are rare but possible.

Common Misconceptions

This test does not diagnose active HSV-1 infection (like cold sores) or measure viral load. It only shows if your body has produced antibodies to the virus, which can happen years after initial infection.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HSV-1 Antibody Test

Frequently asked questions

Can I get HSV-1 from this test?
No, this test does not transmit HSV-1. Blood samples are handled with strict infection control to prevent exposure.
Will this test affect my pregnancy?
If ordered for pregnancy planning, it helps assess potential risks but does not directly impact pregnancy. HSV-1 is managed through good hygiene and antiviral medications if needed.
How long do results take?
Results are typically available within 2–5 business days, depending on lab processing times.
  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