Skip to content

Herpes Simplex Virus Type 1 (HSV-1) DNA Detection by Nucleic Acid Amplification Probe

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

This test checks for the presence of genetic material from the herpes simplex virus type 1 (HSV-1) in your blood, which may indicate an active infection.

Quick summary

["This test helps diagnose whether you currently have an HSV-1 infection that could require medical attention."]

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

Key facts at a glance

LOINC
92870-5
Short code
HSV1 DNA Bld Ql NAA+probe
Synonyms
HSV1 DNA Bld Ql NAA+probe
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects the DNA sequence of HSV-1, a virus that can cause cold sores and other infections. This genetic material is amplified and identified using a specialized probe to confirm infection status.

Why It’s Done

A healthcare provider may order this test if you have symptoms like sores, pain, or fever that suggest HSV-1 infection, or if you have recurring outbreaks. It can also be used to confirm infection in certain clinical scenarios.

How the Test Works

Blood is collected and processed to extract DNA. The DNA is then analyzed using a molecular technique (nucleic acid amplification probe) to detect the presence of HSV-1 genetic material.

What the Results Mean

A positive result means HSV-1 DNA was found, suggesting an active infection. A negative result means no detectable HSV-1 DNA was found at the time of testing, but infection could still be present in other parts of your body or latent (inactive).

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is crucial for diagnosing active HSV-1 infections, guiding treatment decisions, and managing outbreaks. It helps differentiate between active and latent infections, which affects treatment approaches and preventive strategies.

Short name

HSV-1 DNA Test

Frequently asked questions

How long does it take to get results from this test?
Results are typically available within 24 to 48 hours, depending on the laboratory’s processing schedule. Your healthcare provider will contact you once results are ready.
Can this test detect past infections?
No, this test specifically looks for active HSV-1 DNA in your blood. It cannot detect past infections or latent virus presence without further testing, such as antibody tests.
What should I do if I have symptoms like sores or pain that suggest HSV-1?
If you experience symptoms, see your healthcare provider promptly. They may recommend this test or other diagnostic steps to confirm the infection and guide appropriate treatment, such as antiviral medications.
  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