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HIV-1 Integrase Resistance Gene Mutation Detection (Serum/Plasma)

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

This test checks for specific genetic mutations in the integrase protein of HIV-1, which can affect how well certain antiviral medications work. It helps doctors tailor treatment to improve your response to therapy.

Quick summary

["This test helps personalize HIV treatment by identifying mutations that may reduce the effectiveness of specific drugs."]

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

Key facts at a glance

LOINC
61199-6
Short code
HIV1 integrase gene Mut Det Islt
Synonyms
HIV1 integrase gene Mut Det Islt
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 doctor may recommend this test if you’re taking or considering antiretroviral therapy (ART) that targets HIV’s integrase enzyme. It helps ensure the medications you’re using are likely to work effectively against your virus, reducing the risk of treatment failure or drug resistance.

How the Test Works

A small sample of your blood (serum or plasma) is collected and analyzed for specific DNA sequences in the HIV integrase gene. Advanced laboratory techniques detect any mutations that may alter how the virus interacts with integrase inhibitors, the class of drugs used in many modern HIV treatments.

What to Expect Before the Test

No special preparation is needed. You may have a simple blood draw, similar to other routine blood tests. If you’re pregnant, breastfeeding, or have a bleeding disorder, let your doctor know before the test.

What to Expect During the Test

The test involves drawing blood from a vein in your arm. You may feel a slight pinch, but it usually takes only a few minutes. The sample is then sent to a lab for genetic analysis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is critical for monitoring resistance to integrase strand transfer inhibitors (INSTIs), a key class of HIV medications. Certain mutations can make your virus less responsive to these drugs, requiring adjustments to your treatment plan. Early detection helps prevent treatment failure and ensures you stay on an effective regimen, improving your long-term health and quality of life.

Short name

HIV Integrase Mutation Test

Frequently asked questions

When would this test be recommended?
Your doctor may recommend this test if you’re starting or switching HIV medications that target integrase, if you’ve experienced treatment failures, or if you’re considering second-line therapies. It’s also useful for patients with detectable viral loads who may need to explore alternative drug options.
What does a positive result mean?
A positive result indicates the presence of specific mutations in the HIV integrase gene that may reduce the effectiveness of integrase inhibitors. This doesn’t mean your treatment will fail outright, but it may require your doctor to adjust your medication regimen to one that targets different viral features or mutations.
How often should this test be done?
The frequency depends on your treatment history and viral load. Typically, it’s done at the start of new integrase-targeting therapy or if you’ve had previous treatment failures. Your healthcare provider will determine the best timing based on your individual situation.
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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