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Doctor insights on: Parainfluenza Ag Detection Dfa

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Dr. John Fung Dr. Fung
3 doctors agreed:
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Hep B Virus (HBV) DNA Qualitative (Detection) - COBAS TaqMan , Hep C RNA Detection by Taqman detection will be conclusive on 47 days? Any retest need?

Dr. John Fung Dr. Fung
3 doctors agreed:
Hep B Virus (HBV) DNA Qualitative (Detection) - COBAS TaqMan , Hep C RNA Detection by Taqman detection will be conclusive on 47 days? Any retest need?

No: Both Hepatitis B and C viruses may be detected 30 to 60 days after infection by antigen detection or 60-120 days with antibody testing. Direct HBV DNA and HCV RNA testing can potentially detect infection earlier, within 2-4 weeks after infection, so being tested at 47 days post-exposure with a negative nucleic acid test for both is very likely to be a true negative ...Read more

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Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

Advia hep. C antibody +,HCV RNA -. 3 months later Architect hep. C antibody -, HCV RNA -. 2 hep C Ab Verification tests-.Can above person donate blood?

May be: You ought to disclose these results to the blood bank so that they may make a determination on your eligibility to donate along with other health factors. I commend you for considering doing your civic duty. ...Read more

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Test result was "Hepatitis Surface Antibody - Nonreactive" and "Hepatitis B Surface Antigen - Reactive", "HBS AG Confirmation - Nonconfirm".

Test result was "Hepatitis Surface Antibody - Nonreactive" and "Hepatitis B Surface Antigen  - Reactive", "HBS AG Confirmation - Nonconfirm".

Hmmmm: Got me beat. A reactive Hep B antigen indicates that you have Hepatitis B. However, It looks like the test was NOT confirmed. My experience with labs is that their report format could use some improvement and you may be misreading this. Talk to the doc who ordered the test. ...Read more

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Advia hep.C antibody +, HCV RNA -. 3 months later Architect hep C Ab -, HCV RNA -. 2 Hep C Ab Verification tests -.Is Advia hepC Ab test false positiv

Advia hep.C antibody +, HCV RNA -. 3 months later Architect hep C Ab -, HCV RNA -. 2 Hep C Ab Verification tests -.Is Advia hepC Ab test false positiv

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 presume other experts who arranged your follow-up testing have suggested the same interpretation. Stay well:) ...Read more

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Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Hepatitis c (HCV) antibody is reactive. The hepatitis C Recombinant Immunoblat Assay(riba) confirmation test is non reactive.Is antibody false positiv

Well : A positive hepatitis C antibody test with a negative or in a test usually is not a false positive that usually means someone had hepatitis C infection and their body cleared the infection and they are now immune to hepatitis C. Do a Healthtap visit or see a primary care physician for specific diagnosis ...Read more

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IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative. Do I have HBV?

IMy HBV test results (red cross): Hepatitis B Surface Antigen: Nonreactive; Hepatitis B Core Antibodies: Reactive; HBV PCR: Negative.  Do I have HBV?

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 negative, that means the lab does not find the virus's DNA (genes). If the core antibody is reactive that means her immune system REMEMBERS being infected with Hep B. She is cured, but some viral DNA might be attached to her own human DNA in her liver. ...Read more

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Is a core positive antibody for hepetitis b is dangerous. Igm antibody negetive. Surface antigen negetive with surface antibody positive. Explain?

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 constituents of the virus. These results are not a cause for concern. ...Read more

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CMIA 4th gen antibody screening test (not antigen) for hiv 1 & 2 @50 days is 0.15 non reactive.Is antibody screening without antigen accurate @7thweek?

CMIA 4th gen antibody screening test (not antigen) for hiv 1 & 2 @50 days is 0.15 non reactive.Is antibody screening without antigen accurate @7thweek?

Conclusive at 6+ wk: Official advice by many agencies is that stand-alone HIV antibody tests are not conclusive until 3 months. However, with the modern tests in current use, including the test you had, the results actually are conclusive any time 6 or more weeks after exposure. Feel free to have another test at 3 months if another negative result will help you get beyond your fears. But i really isn't necessary. ...Read more

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Igg positive for rubella ;igg pos fr cytomegalo virus?

Igg positive for rubella ;igg pos fr cytomegalo virus?

Immunity: This just means that there is immunity to rubella and cytomegalovirus based on passed infection. ...Read more

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How's a poliovirus antibody level test performed?

How's a poliovirus antibody level test performed?

Neutralization assay: Poliovirus antibodies are tested via neutralization assay for polio type 1, polio type 2, and polio type 3 separately. Protection to one type of polio does not protect you from the others. One needs to have protective titers to all three types to be "immune". ...Read more

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I'm hebs ag negative with a high anti hbs antibody from vaccination. This week's test was reported as hebs ag detected with anti hbs antibody of 513 miu/ml. Lft normal....Scared....Lab error?

I'm hebs ag negative with a high anti hbs antibody from vaccination.  This week's test was reported as hebs ag detected with anti hbs antibody of 513 miu/ml. Lft normal....Scared....Lab error?

Yes: That sounds like lab error. Your hbsab would provide immunity; i'm assuming yoru hbcab (core) is negative; i wouldn't worry, talk to your doctor about a retest if you are concerned, but even if you were infected, there is no reason for treatment at this time. ...Read more

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Hep B surface Ab - positive, Hep BE antigen - positive, Viral DNA 2000 IU. Acute Hep B DX. Tests don't match the serology timeline? Am I in recovery?

Need expert care: This situation is too complex for safe advice on this forum. You should be seeing an expert in person, or perhaps seek HealthTap's concierge service with an infectious diseases or liver disease expert. ...Read more

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Is RNA PCR test for HIV accurate?

Is RNA PCR test for HIV accurate?

Yes: The nucleic acid test for HIV becomes positive about 20 days after exposure to the virus. ...Read more