Skip to content

HIV Genotype by Nucleic Acid Amplification Test (NAAT) for Nucleic Acid-Related Antigen

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

This test helps identify the specific type (genotype) of the HIV virus in your blood or body fluids. It’s often used to guide treatment decisions, especially if antiviral medications are needed.

Quick summary

["Determining your HIV genotype can help tailor your treatment plan for better outcomes."]

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

Key facts at a glance

LOINC
49573-9
Short code
HIV Gentyp Islt Nar
Synonyms
HIV Gentyp Islt Nar
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
genotyping
CPT
86701
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’re newly diagnosed with HIV, if your current treatment isn’t working well, or if you’re considering starting new medications. It’s also used to monitor resistance to specific HIV drugs.

How the Test Works

A small blood sample or other bodily fluid (like saliva) is collected and tested for HIV genetic material. The test uses advanced laboratory techniques to detect the virus’s unique genetic sequence, which helps identify its type.

What to Expect Before the Test

No special preparation is needed. You may have a simple blood draw or a sample collected via a swab (e.g., saliva). If you’re taking blood, you might feel a slight pinch, but it’s usually over quickly.

What to Expect After the Test

Results are typically ready within a few days to a week. Your healthcare provider will discuss the findings with you, including any genotype details that may affect your treatment plan.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Knowing your HIV genotype is crucial because it helps determine which antiviral medications will be most effective. Some viruses may develop resistance to certain drugs over time, and genotype testing can guide adjustments to your treatment to improve its success.

Short name

HIV Genotype Screening (NAAT)

Frequently asked questions

How long does it take to get results from this test?
Results are usually available within 5 to 7 business days, depending on your lab’s processing schedule. Your healthcare provider will contact you once they’re ready.
Can this test be done at home?
No, this test requires a sample collected by a healthcare professional in a clinical setting, such as a doctor’s office or lab. Saliva or blood samples are typically taken in person.
Is there any risk or discomfort associated with this test?
The discomfort is minimal. Blood draws may cause a slight pinch, but most people tolerate it well. If you’re concerned, let your healthcare provider know so they can explain the process further.
  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