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Anti-HIV 1 Antibody Titration (Serum/Plasma)

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

This test measures the level of antibodies your body produces in response to the HIV virus. It helps determine if you’ve been exposed to HIV and whether your immune system is responding.

Quick summary

["Assesses HIV exposure and immune response over time with precise antibody measurement."]

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

Key facts at a glance

LOINC
39296-9
Short code
FLUAV H1 Ab Titr Ser HAI
Synonyms
FLUAV H1 Ab Titr Ser HAI
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
hai
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 detects specific antibodies (immunoglobulins) that your immune system creates after exposure to HIV. These antibodies are part of your body’s natural defense against the virus. The titration process helps track how strongly your immune system is reacting, which can be important for monitoring infection progression or evaluating treatment response.

Why It’s Done

Healthcare providers may order this test if you’ve been exposed to HIV, have symptoms of infection, or are part of a screening program. Titration can also be used to assess immune function in people living with HIV to guide treatment decisions.

Sample Collection and Preparation

A blood sample is drawn from a vein in your arm. The serum or plasma is then processed and tested for antibody presence. The test may require multiple samples over time to track changes in antibody levels.

How Results Are Interpreted

Results are reported as a titration value, which indicates the relative concentration of antibodies. While not a direct measure of virus load, higher antibody levels may suggest a stronger immune response. Interpretation depends on clinical context, including your medical history and symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HIV Antibody Test (Titration)

Frequently asked questions

How long does it take to get results from this test?
Results typically arrive within 1 to 3 business days, depending on lab processing times. Follow-up with your healthcare provider to discuss findings and next steps.
Can I have my blood drawn at home?
No, this test requires a professional blood draw at a clinic or lab. Specialized phlebotomy is needed to collect the sample accurately.
What if my antibody levels are low?
Low antibody levels may indicate recent exposure, a weak immune response, or possible HIV infection. Your provider will evaluate results alongside other factors, such as symptoms, risk factors, and additional testing (e.g., viral load) to guide diagnosis or treatment.
  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