Herpes Simplex Virus Type 1 Antibody, Qualitative (IgG) – Serum/Plasma
This test checks for antibodies to the herpes simplex virus type 1 (HSV-1), a common virus that can cause cold sores and other infections. It helps determine if your body has been exposed to HSV-1.
["This test helps assess past infection with HSV-1, which may affect your immune response or risk of certain complications."]
Key facts at a glance
- LOINC
- 94585-7
- Short code
- HSV 1 + 2 + VZV DNA Pnl Spec NAA+non-prb
- Synonyms
- HSV 1 + 2 + VZV DNA Pnl Spec NAA+non-prb
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- non-probe-amp-tar
- 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 Might Be Ordered
Your healthcare provider may order this test if you have symptoms like cold sores, recurrent infections, or if you’re being evaluated for conditions linked to HSV-1 exposure, such as certain neurological or eye infections. It may also be used in screening for people with weakened immune systems or during pregnancy to assess risk.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. The test is typically done in a lab setting and results are usually available within a few days.
What the Results Mean
A positive result means your body has produced antibodies against HSV-1, indicating past infection. A negative result suggests you may not have been exposed or the infection may be very recent. Antibody levels alone do not indicate the severity or current activity of the virus.
Common Uses and Limitations
This test is primarily used for screening and confirmation of past HSV-1 exposure. It does not diagnose active infection (like cold sores) or measure viral load. Results should be interpreted by a healthcare provider in the context of your symptoms and medical history.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
HSV-1 Antibody Screen (IgG)
Frequently asked questions
What questions might you have about this test?
How long will it take to get my results?
Can I get this test if I’m pregnant?
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