- Male
- 31 Years
- 22/01/2025
Hey, I've got a question about the P24 antigen antibody test. If I take it a month after possible exposure, will the results be conclusive for HIV, or should I consider getting another type of test too? I'm anxious to know how accurate it really is at that point.
Answered by 1 Apollo Doctors
The P24 antigen-antibody duo test is highly accurate when done after one month of potential exposure, as it detects both the HIV virus and antibodies. However, for a conclusive result, it's recommended to confirm with a follow-up test, such as the HIV RNA PCR test or another antibody test, at 3 months post-exposure.
Dr. Shubham Suggests...
Consult a Infectious Disease specialist
Answered 04/07/2025
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Understanding the P24 Antigen Antibody Test
- The P24 antigen antibody test detects HIV antigens and antibodies, indicating early infection.
- It differs from other tests by identifying the virus sooner than antibody-only tests.
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Timing and Accuracy of the Test at One Month Post-Exposure
- The P24 test is typically accurate from 2-4 weeks post-exposure.
- At one month, it is generally reliable, but not definitive for all cases.
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Recommendations for Additional Testing
- Follow-up testing is advised to confirm results.
- Consider a nucleic acid test (NAT) or a fourth-generation test for comprehensive results.
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Consulting Healthcare Professionals
- Discuss results and timing with a healthcare provider for personalized advice.
- They can guide you on next steps based on your risk factors and test outcomes.
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Emotional Support and Confidentiality
- Seek support and maintain confidentiality during testing and follow-up.
- Professional guidance can provide reassurance and clarity.
Recommended next steps
Consult a Infectious Disease specialist or Consult a Sexologist
Answered 20/08/2025
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I've had a couple of HIV tests after possible exposure. At 3 months, both the 4th gen rapid test and HIV antibody test from the lab came back negative. Then I waited until 5 months and did another 4th gen CMIA test for p24 AG and antibodies, and that was negative too. I'm really anxious about whether these results are conclusive. Do you think I need any more testing, or can I finally relax?
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Answered by 1 Apollo Doctors
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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.