HIV Test
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
What this test measures
This blood test screens for HIV (human immunodeficiency virus) using a combination immunoassay that detects both HIV antibodies (proteins the immune system produces in response to infection) and the HIV-1 p24 antigen (a viral protein that appears in the blood earlier than antibodies do). By testing for both antibodies and antigen simultaneously, this approach shortens the detection window, typically identifying infection within 18 to 45 days after exposure.
The test differentiates between HIV-1, which accounts for the vast majority of infections worldwide, and HIV-2, which is found primarily in West Africa. If the initial screening result is reactive, the laboratory automatically performs supplemental testing to confirm the finding and determine the HIV type. Modern HIV treatment with antiretroviral therapy is highly effective at suppressing the virus and maintaining long-term health, making early detection through routine screening one of the most impactful steps a person can take.
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Anyone who has had unprotected vaginal, anal, or oral sex with a partner whose HIV status is unknown
- Individuals who have shared needles, syringes, or other drug injection equipment
- People who have been diagnosed with another sexually transmitted infection, as STIs can increase HIV risk
- Those with multiple sexual partners or whose partner has multiple sexual partners
- Anyone who has received a blood transfusion or blood products in countries with less rigorous blood screening
- Individuals experiencing symptoms that may indicate acute HIV infection, such as fever, fatigue, or swollen lymph nodes within 2-4 weeks of potential exposure
What to expect
Preparation
No special preparation needed. You can eat and drink normally before the test. No fasting is required.
Sample Type
A healthcare professional will draw a small amount of blood from a vein in your arm using a sterile needle
Collection
Visit any participating lab location with a valid photo ID. The blood draw takes just a few minutes and is performed by trained laboratory staff
Turnaround
Results are typically available within 1-3 business days and will be securely delivered through your online account
Understanding your results
Results are reported as either "Non-Reactive" (negative, meaning HIV was not detected) or "Reactive" (positive, meaning markers of HIV were found). A reactive initial result automatically triggers confirmatory testing before the result is finalized, because the screening assay is designed to be highly sensitive, which occasionally produces false-reactive results. A confirmed negative result provides strong reassurance when the test is performed outside the window period. A confirmed positive result opens the door to early treatment, which is highly effective at preserving health and reducing transmission risk. Healthcare providers can discuss the meaning of results and appropriate next steps in a confidential setting.
| Population | Reference Range | Notes |
|---|---|---|
| All adults | Nonreactive/Negative or Reactive/Positive | Results are reported qualitatively, not as numerical values |
| Confirmed positive | Additional testing differentiates HIV-1 from HIV-2 | Follow-up testing determines specific HIV type and may include viral load measurement |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
If your HIV test result is negative, it doesn't necessarily mean you don't have HIV. If the test result is negative, get tested again after the window period to be sure. A negative result during the window period (the time between infection and when the test can detect HIV) may not reflect your true status if you were recently exposed to HIV.
What does a “High” result mean?
A reactive or positive result indicates that HIV antibodies and/or antigens were detected in your blood sample. If your follow-up test is also positive, it means you have HIV. This result means you should begin discussions with a healthcare provider about HIV treatment options, which can help you maintain your health and prevent transmission to others.
Privacy & confidentiality
Your HIV test results are completely confidential and are delivered securely through your private online account. Results are not shared with employers, insurance companies, or anyone else without your explicit written consent. All testing is conducted in full compliance with HIPAA privacy regulations and state confidentiality laws.
Frequently asked questions
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Read ArticleLast reviewed: April 2026
CPT Code: 87389
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
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