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Herpes Simplex Virus Type 2 DNA Genital Swab Nucleic Acid Amplification Probe

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

This test detects the presence of herpes simplex virus type 2 (HSV-2) DNA in a genital swab sample using a molecular probe. It helps confirm if you have genital herpes caused by HSV-2.

Quick summary

["This test can help diagnose genital herpes caused by HSV-2 and guide treatment decisions."]

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

Key facts at a glance

LOINC
91858-1
Short code
HSV2 DNA Genital Ql NAA+probe
Synonyms
HSV2 DNA Genital 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

What This Test Measures

The test looks for genetic material (DNA) from HSV-2 in cells collected from your genital area. If HSV-2 DNA is found, it suggests an active or recent infection with this type of herpes virus.

How the Test Works

A swab is used to collect cells from your genital region. The sample is then analyzed using a specialized probe that binds to HSV-2 DNA, allowing for highly sensitive detection.

Why It’s Done

Your healthcare provider may order this test if you have symptoms like sores, blisters, or pain in the genital area, or if you have a history of genital herpes. It can also be used for screening or confirming infection in certain clinical situations.

Sample Collection

A sterile swab is gently inserted into your genital area to collect cells. The procedure is quick and usually painless. You may need to clean the area beforehand with mild soap and water.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a crucial role in diagnosing genital herpes caused by HSV-2. Accurate detection helps confirm the diagnosis, informs treatment options, and supports decisions about sexual health and prevention strategies. It can also be used to monitor recurrence or guide antiviral therapy.

Short name

HSV-2 Genital Swab NAAT Probe

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 lab’s processing schedule. Your healthcare provider will discuss the results with you.
Is there any preparation needed before the test?
No special preparation is required. You may shower or clean the genital area with mild soap and water before the test, but avoid using harsh soaps or perfumed products.
Can I have sex during the test or before getting results?
It’s best to avoid sexual contact until you have the results, especially if you have active symptoms or are unsure about your status. This helps prevent potential transmission of the virus.
  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