California
HIV DUO Test in California
The HIV 4th generation test detects both HIV antibodies and the p24 antigen in a blood sample. Combining the two markers narrows the window period and allows earlier detection after exposure.
Order HIV 4th Generation Antigen/Antibody Test in California
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order HIV 4th Generation Antigen/Antibody Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The HIV 4th Generation Antigen/Antibody Test, often called the DUO test, looks for both HIV antibodies and the p24 antigen in a blood sample. Earlier generation tests detected only antibodies, which take weeks to develop. Adding the antigen marker allows the test to detect infection sooner after exposure, though a window period still applies.
What this test measures
When HIV enters the body, the p24 antigen appears in the blood before antibodies form. A fourth generation test measures both, so it can detect infection earlier than antibody-only tests. This combined approach has become the standard initial screen for HIV in many laboratories.
The sample is blood drawn from a vein. If the combined screen is reactive, a follow-up test is performed to confirm the result and to distinguish HIV-1 from HIV-2 where relevant. Screening tests are designed to be sensitive, so a reactive screen is not final until confirmatory testing is complete.
No test can detect infection immediately after exposure, because the virus and the immune response both take time to become measurable. A healthcare provider can advise on when to test and whether repeat testing is appropriate. Results are confidential and should be discussed with a qualified provider.
HIV DUO Test in California cities
Acalanes Ridge, CA
HIV DUO Test in Acalanes Ridge.
Acton, CA
HIV DUO Test in Acton.
Adelanto, CA
HIV DUO Test in Adelanto.
Agoura Hills, CA
HIV DUO Test in Agoura Hills.
Agua Dulce, CA
HIV DUO Test in Agua Dulce.
Ahwahnee, CA
HIV DUO Test in Ahwahnee.
Airport, CA
HIV DUO Test in Airport.
Alameda, CA
HIV DUO Test in Alameda.
Alamo, CA
HIV DUO Test in Alamo.
Albany, CA
HIV DUO Test in Albany.
Alhambra, CA
HIV DUO Test in Alhambra.
Aliso Viejo, CA
HIV DUO Test in Aliso Viejo.
Allendale, CA
HIV DUO Test in Allendale.
Alondra Park, CA
HIV DUO Test in Alondra Park.
Alpine, CA
HIV DUO Test in Alpine.
Alta Sierra, CA
HIV DUO Test in Alta Sierra.
Altadena, CA
HIV DUO Test in Altadena.
Alturas, CA
HIV DUO Test in Alturas.
Alum Rock, CA
HIV DUO Test in Alum Rock.
Amador Pines, CA
HIV DUO Test in Amador Pines.
American Canyon, CA
HIV DUO Test in American Canyon.
Amesti, CA
HIV DUO Test in Amesti.
Anaheim, CA
HIV DUO Test in Anaheim.
Anderson, CA
HIV DUO Test in Anderson.
Angels, CA
HIV DUO Test in Angels.
Angwin, CA
HIV DUO Test in Angwin.
Antelope, CA
HIV DUO Test in Antelope.
Antioch, CA
HIV DUO Test in Antioch.
Anza, CA
HIV DUO Test in Anza.
Apple Valley, CA
HIV DUO Test in Apple Valley.
Frequently Asked Questions
Where can I get a hiv duo test in California?
California has certified laboratories and independent diagnostic centers that offer this panel. Direct-access ordering lets you select a location that fits your schedule.
How much does a hiv duo test cost in California?
Pricing varies by provider and location. Check the price shown at checkout, and contact the testing partner for a written estimate if needed.
Is at-home collection available in California?
For select panels, at-home kits can be shipped to California, collected at home, and mailed back for analysis.
How long do results take in California?
Most results are reported within 1-3 business days after collection.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
Reviewed by the LabOrdering Editorial Team
Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.