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  2. 2. Visit a Lab

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  3. 3. Get Your Results

    Physician-reviewed lab results are available online within 24-72 hours.

HIV 1/2 Ab/Ag (4th Generation) Test


This HIV 1/2 Ab/Ag test examines your blood for HIV antibodies and P24 antigens to determine if you are at risk. HIV is a highly transmissible disease spread commonly by sexual contact and/or transferring of bodily fluids including blood, semen, vaginal fluid, and breast milk. While there is no cure for HIV or AIDS, advances in medicine have made it possible to treat and live with the disease for much longer than ever before. If it is determined that you do have HIV, your physician will be able to help you determine the proper next steps. Because of the incubation period of HIV antibodies, it is recommended that you take this HIV 1/2 Ab/Ag test between three and four weeks after any potential exposure (unprotected sex, shared needles, etc.).

Testing Method:
Blood draw
Test Preparation:
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How HIV 1/2 Ab/Ag Tests Work

To schedule an appointment, simply place an order online for your HIV 1/2 Ab/Ag Test (4th Generation HIV Test). Then, visit one of our 4,000+ nationwide testing facilities to have your sample collected. A certified staff member will take a small blood sample at which point your job is complete. The process is painless and takes only a few minutes. In fact, most patients are in and out of the facility in under a half-hour. From there, your sample will be processed in a CLIA-certified laboratory and you’ll have complete results available on your online portal regarding your status for HIV 1/2.

Common HIV Symptoms

HIV symptoms differ depending on the person and which stage of the disease they are in. Common signs of HIV imitate flu-like symptoms such as:

  • Fever
  • Chills
  • Rash
  • Night sweats
  • Muscle aches
  • Sore throat
  • Fatigue
  • Swollen lymph nodes
  • Mouth ulcers.

However, if you are experiencing these symptoms, it doesn’t always mean you have HIV. But if you suspect you have been exposed, it’s best to get tested to confirm.

How to Interpret Your Results

Once you receive your test results, it might seem overwhelming at first. But take the time to interpret your test results to have a full understanding of your status. The summary for your HIV 1/2 Ab/Ag (4th Generation) Test will most likely include the name of the test, a ‘result’, ‘reference range’ and ‘flag’.

The ‘result’ indicates reactive, non-reactive, detected, not-detected or a value. If you see a value, this is a numerical measurement that is compared against the reference range to determine if the sample is normal or abnormal.

The ‘flag’ value will indicate whether your test came back normal or abnormal. Normal ranges indicate you are not infected and an abnormal result could mean a possible infection.

For more detailed information, visit our Sample Test Results page to learn more about interpreting your results.

HIV 1/2 Ab/Ag (4th Generation) Test vs HIV RNA Test

An HIV 1/2 Ab/Ag test examines your blood for HIV antibodies and P24 antigens to determine if you are at risk. An HIV RNA Test is an early detection test that analyzes the presence of the HIV virus itself and indicates whether you are reactive or non-reactive.

Frequently Asked Questions

  • It is estimated that approximately 1.2 million people in the U.S. have HIV and 13 percent of them don’t know it and need testing. 

    HIV continues to have a disproportionate impact on certain populations, particularly racial and ethnic minorities and gay, bisexual, and other men who have sex with men.

    Even if you feel healthy, the infection can still be passed to other sexual partners and increase the risk of other STDs. Therefore, the sooner you get tested, the sooner you can start a treatment regimen and get back on the path to wellness.

  • We aim to deliver full, comprehensive results in a timely manner (usually within 24-72 hours after testing). If you do have questions about your results, however, our care counselors are standing by ready and willing to assist. We can even put you in touch with a physician should you require additional assistance and/or prescription medication.

  • Because of the incubation period of HIV antibodies, it is recommended that you take this HIV 1/2 Ab/Ag test between 3 and 4 weeks after any potential exposure (unprotected sex, shared needles, etc.).

  • Simply put, at Priority Lab Testing we aim to deliver the most accurate testing results anywhere on the market. We’ve partnered with industry-leading clinical laboratory Quest Diagnostics to ensure that all testing results are clear, comprehensive, and reliable for our patients. Tests are FDA-approved and conducted in CLIA-certified laboratories. Testing centers perform regular quality assurance testing to ensure accurate results time and time again.

  • We currently only offer treatment options for patients who test positive for chlamydia, gonorrhea, or trichomoniasis. If you receive a positive result, simply call and speak with a care counselor to schedule a phone consultation with a physician–no office visit is needed. We are partnered with physicians at PWNHealth so treatment can be prescribed if appropriate in all states. You must have a positive result before treatment can be authorized. The physician consult fee is $65.