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hiv antibody antigen test

A 36-year-old male asked:
Dr. Robert Killian
27 years experience in General Practice
HIV Testing: Twelve to twenty-four weeks after exposure.

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A 34-year-old male asked:
Dr. Monica Michel
11 years experience in Family Medicine
Should be ok: If the exposure was unprotected sex then first off it would be extremely helpful if your partner does not have known HIV. But I assume you don't know ... Read More
A 29-year-old female asked:
Dr. Lewis Hassell
38 years experience in Pathology
Test accuracy: Every test we do has a margin of error, due to both the nature of the test itself or how people behave when they collect samples, and the biologic var ... Read More
A 28-year-old female asked:
Dr. Al Hegab
Dr. Al Hegab answered
39 years experience in Allergy and Immunology
Conclusive: No need to test again
A 39-year-old male asked:
Dr. Robert Killian
27 years experience in General Practice
HIV testing: Nope. It is way too soon for this older antibody test to be 100% accurate. If this is the only test you can get then you will need further or repeat ... Read More
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A 35-year-old female asked:
Dr. David Rosenthal
20 years experience in Allergy and Immunology
It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. ... Read More
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A 34-year-old male asked:
Dr. Robert Killian
27 years experience in General Practice
HIV testing: Yes. Viral testing can be qualitative or quantitative. Most HIV RNA testing is quantitative.
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A 44-year-old member asked:
Dr. Kathleen Mullane
31 years experience in Internal Medicine
Accuracy of ELISA: The elisa test is 99+% accurate (sensitive and specific) in individuals who have had the infection long enough for the assay to pick it up. For the 3r ... Read More
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A 58-year-old male asked:
Dr. Ed Friedlander
43 years experience in Pathology
Treat the person: Lab tests mean nothing in isolation, and have many false positives and false negatives. The decision to make a trial of a gluten-free diet will be bet ... Read More
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A 44-year-old member asked:
Dr. Gurmukh Singh
48 years experience in Pathology
Yes: The nucleic acid test for HIV becomes positive about 20 days after exposure to the virus.
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A 65-year-old male asked:
Dr. Gurmukh Singh
48 years experience in Pathology
Not necessarily: The information suggests that you had hepatitis C infection and recovered from it and eliminated the virus from your body. About 20% of the people who ... Read More
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A 37-year-old male asked:
Dr. Dominic Riganotti
24 years experience in Infectious Disease
HCV: Nowadays with polymerase chain reaction technology it is making "window" periods a less discussed issue. In my practice if I suspected a recent infec ... Read More
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A 34-year-old female asked:
Dr. Robert Killian
27 years experience in General Practice
Testing for Viruses: Yes. Of course. But, it does matter the timing of the tests and the length of time since the possible infectious exposure.
A 55-year-old female asked:
Dr. Kristel Hunt
22 years experience in Hepatology
Excellent question: and your story stumps many a doctor, often! :) a lot of the recommendations depend on - are you someone with risk factors for HBV? is this the first t ... Read More
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A 65-year-old male asked:
Dr. Mohammad Ashori
15 years experience in Family Medicine
Viral count: The anti-body test is not the most accurate way to diagnose hepatitis C. We usually do a RNA viral count.
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A 57-year-old male asked:
Dr. Robert Killian
27 years experience in General Practice
Misinformed?: Who told you that your hep c test was false? If you have no viral load that means you cleared an infection. Are you sure you are getting the right adv ... Read More
A 55-year-old female asked:
Dr. Robert Kwok
32 years experience in Pediatrics
Cured, but...: If a person's Hep B surface antigen is nonreactive, that means the lab does not find pieces of the surface of the virus. If her Hep B virus PCR is neg ... Read More
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A 43-year-old female asked:
Dr. William Coutts ii
25 years experience in Family Medicine
Yes: The initial screening test for HIV is very sensitive, but not very specific. The back up screening tests are much more specific for HIV.
A 34-year-old male asked:
Dr. Gurmukh Singh
48 years experience in Pathology
Past infection: The results you described are consistent with a past infection with hepatitis b from which you have recovered. You body made antibodies to the constit ... Read More
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A 65-year-old male asked:
Dr. James Cain
35 years experience in Nephrology and Dialysis
Probably not: the presence of the antibody indicates an exposure to the antigen (the virus) . the absence of the virus indicates that the virus has been eradicated. ... Read More
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A 65-year-old male asked:
Dr. Julie Abbott
44 years experience in Preventive Medicine
Without more info: and only the data you submitted in your question, I would put it together the way you did: the first Advia hepC Ab test was a false positive. I presu ... Read More
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A 55-year-old member asked:
Dr. Martin Raff
55 years experience in Infectious Disease
HIV diagnosis: Antibody titers have been reported to be delayed as long as six months, but this is very unusual. A negative pcr for viral RNA is virtually determina ... Read More
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A 34-year-old male asked:
Dr. Philip Miller
46 years experience in Family Medicine
Along with: confirmatory western blot and viral load.
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1 comment

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