Get Virtual Care
For Businesses
About Us
A member asked:
In regard to hiv, do p24 protein levels decrease regardless of antibody response or is it specifically antibody-antigen complexing in the blood that causes p24 levels to become undetectable?
A doctor has provided 1 answer
P24 antigen is a structural protein of the HIV virus (part of the external “wall” of the virus). Is present early after infection, but gradually declines and ultimately disappears as HIV antibodies build up and block detection of the antigen. Is therefore part of 4th generation HIV test (the test becomes (+) very soon after exposure due to P24 antigen) and stays (+) later due to HIV antibody
Answered 8/21/2021
0 views
Thank
Related Questions
A member asked:
Hiv 1/2 blood analysis: antibodies and p24 antigen (chemiluminescence): reactive-2, 741 IgG antibodies (enzyme immunoassay):nonreactive in this case, is HIV infection accurate?
2 doctors weighed in across 2 answers
A member asked:
IS HIV DNA PCR and Antibody/Antigen Laboratory at 26 days same time conclusive??? Blood draw risks, maybe needle reuse????
2 doctors weighed in across 2 answers
A member asked:
26 days ago I went to massage parlor and received handjob with oil after and had small abrasion on penis. Yesterday I took HIV 1 & 2 antigen/antibody blood test and it was non reactive. How accurate is this test at 25 days? Further testing required?
3 doctors weighed in across 2 answers
People also searched for:
When p24 proteins become undetectable again after sufficient antibodies to HIV have been produced because they bind to the p24 protein and eliminate it from the blood. Can CMIA Hiv test ( Architect) detect hiv or antibody after 6 months 15 days?Thank?
How much accuracy is expected with a Negative HIV Duo AB/AG full blood lab at 18 days of possible exposure? Would this timeframe detect the P24 Antigen reliably, if no antibodies are detected?
Bloods done for HIV at GUM clinic. Would this test for antigens or antibodies or both? Tested 15 months out.
How accurate is the HIV antibody/antigen blood test at 8 weeks after exposure? Conclusive?
Neg p24 antigen test and neg HIV1/2 antibody test at 11wks post exposure. Can I trust these blood tests and finally have some peace of mind? For HIV
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HIPAASecure
SOC 2 Type 2Certified
JCAHOAccredited
Download HealthTap
Video visit and message your doctor
