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Herpes Simplex Virus 2 (HSV-2) DNA in Lower Respiratory Tract Specimen by Nucleic Acid Amplification Probe

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

This test checks for the presence of the herpes simplex virus type 2 (HSV-2) genetic material in your respiratory tract fluids, such as mucus from your throat or lungs.

Quick summary

["It helps determine if you may have an infection caused by HSV-2, which can affect the respiratory system."]

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

Key facts at a glance

LOINC
89587-0
Short code
HSV2 DNA Lower resp Ql NAA+probe
Synonyms
HSV2 DNA Lower resp Ql 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 Is Done

Your healthcare provider may order this test if you have symptoms like cough, sore throat, or difficulty breathing that could suggest an infection. It’s also used in certain situations to confirm or rule out HSV-2 infection in respiratory samples, such as after exposure or in monitoring for recurrent infections.

What to Expect During the Test

You’ll provide a sample of respiratory secretions (like mucus) collected from your throat or lungs. This is typically done with a swab or nasal aspirate. No special preparation is needed, but you may need to avoid smoking or certain medications for a short time before testing, depending on your provider’s instructions.

Sample Collection Process

The sample is collected by a healthcare professional who will gently insert a sterile swab into your throat or use a nasal aspirate device to gather mucus. The sample is then sent to a lab for testing. The process is quick and usually painless.

What the Results Mean

A positive result means the test detected HSV-2 DNA in your sample, suggesting an active infection. A negative result means no detectable genetic material was found, but this doesn’t always rule out infection—especially if symptoms persist. Follow-up testing or additional questions may be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HSV-2 Lower Resp NAAT

Frequently asked questions

What does a positive result mean for my health?
A positive result indicates you may have an active HSV-2 infection in your respiratory tract. This can help guide treatment decisions, such as antiviral medications, and may inform further monitoring or precautions. It’s important to discuss symptoms, medical history, and treatment options with your healthcare provider.
Can a negative result mean I don’t have the virus?
A negative result means no HSV-2 DNA was detected in this sample, but it doesn’t definitively rule out infection. HSV-2 can sometimes be present in low levels or may not be detected in certain samples. If you have ongoing symptoms, your provider may recommend retesting or other diagnostic approaches.
How long does it take to get results?
Results are typically available within 24 to 48 hours, depending on lab processing times. Your healthcare provider will contact you with the results and any next steps, such as additional testing or treatment plans.
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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