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Herpes Simplex Virus Type 1 (HSV-1) DNA Quantitative PCR in Plasma

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

This test measures the amount of Herpes Simplex Virus Type 1 (HSV-1) genetic material in your plasma. It helps determine if the virus is actively present in your body.

Quick summary

["This test helps monitor viral load for managing HSV-1 infections."]

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

Key facts at a glance

LOINC
92869-7
Short code
HSV 1+2 DNA Pnl BAL NAA+probe
Synonyms
HSV 1+2 DNA Pnl BAL NAA+probe
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
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 recommend this test if you have symptoms of HSV-1 infection (such as sores, fever, or neurological issues), if you’re undergoing treatment for HSV-1, or if you’re at risk for reactivation (e.g., due to weakened immunity). It may also be used to assess response to antiviral therapy.

What to Expect Before the Test

No special preparation is needed. A blood sample will be drawn from a vein in your arm. If you’re on blood-thinning medication, let your provider know before the test.

What the Test Results Mean

Results indicate the viral load of HSV-1 DNA in your plasma. Higher levels may suggest an active infection, while lower levels could mean the virus is under control. Your provider will interpret results in the context of your symptoms and medical history.

Common Reasons for Testing

This test is typically used to diagnose HSV-1 infections, monitor progression, or evaluate treatment effectiveness. It’s not a routine screening test for the general population.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

HSV-1 DNA testing is critical for managing infections, especially in immunocompromised individuals or those with recurrent outbreaks. Accurate viral load monitoring helps guide treatment decisions, such as adjusting antiviral medications to prevent complications or recurrence.

Short name

HSV-1 DNA Test

Frequently asked questions

How long does it take to get results?
Results are usually available within 2–5 business days, depending on lab processing times. Your provider will contact you once they’re ready.
What does a positive result mean?
A positive result means HSV-1 genetic material was detected in your plasma. This doesn’t always mean you’re actively sick, but it confirms the virus is present. Your provider will discuss next steps based on your symptoms and test results.
Can lifestyle changes affect this test?
While lifestyle factors like stress or fatigue may influence HSV-1 activity, they don’t directly alter the test results. Focus on managing symptoms and following your healthcare provider’s advice for treatment.
  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