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Doctor insights on: Hepatitis B Antigen Blood Test

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Dr. Sandra Eleczko
15 doctors shared insights

H. Pylori Breath Test (Definition)

H.Pylori urea breath test is used to detect the presence of h.Pylori in the stomach. If present it acts on urea and releases carbon die oxide (co2)and ammonia. The released co2 is measured, and the presence of h.Pylori is confirmed. It is a useful test conducted in about 15 minutes. The sensitivity and specificity of ubt are approximately 88 to 95 percent and 95 ...Read more


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Might it be possible that a person having hepatitis b antigen negative donate blood?

Might it be possible that a person having hepatitis b antigen negative donate blood?

Need more info: Which hep b antigen are you talking about? If it is hep b e antigen negative and you have positive viral load, then absolutely not. If it is hep b surface antigen negative, you have no viral load and have never been exposed to hep b, then yes. However, if you have had a w/u for abnormal liver enzymes despite negative hep b, you will likely be rejected as that is 1 of the screening questions. ...Read more

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Did my baby have viral hepatitis b? Blood test results hepatitis b surface antigen 0.782?

Did my baby have viral hepatitis b? Blood test results hepatitis b surface antigen 0.782?

It's possible: Based on that test result it is possible but there are confirmatory tests that need to be done. See your pediatrician. They may refer you to a pediatric liver specialist for more tests. ...Read more

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Doctor recent my blood test shows positive for hepatitis b surface antigen is this can be treated completely please reply?

Doctor recent my blood test shows positive for hepatitis b surface antigen  is this can be treated completely please reply?

Active Infection: This can be yes. It may represent acute infection while clearing is occurring but it may also represent chronic carrier/ chronic active. Several medications (hiv meds) have been shown to be active. It's important to get a hep b viral load by pcr to quantitate. Make sure your doctor had adequate experience treating this. It can be difficult to treat. ...Read more

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How soon can blood test detect HIV, Hepatitis B (Surface Antigen) and Hepatitis C virus after unprotected sex? I feel burning sensation from 2nd day of exposure.

Different issues: The burning, I assume is on urinating, if so, you may have urethritis and depending on the type of bug involved, you may need antibiotic treatment. See a doctor for urine examination. Ask her/him about getting tested for HIV HepB and HepC to establish a baseline and repeat the tests at six months. The timeline for testing turn positive varies with the virus and the patient.
Wish you good health. ...Read more

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I have hepatitis b antigen positive, I am worried about getting married?

Ask Partner: If 1 partner, they vaccinated against hepatitis b? In this high risk situation have they considered having their immunity checked via blood work? Have you ruled out other sexually transmitted diseases such as hiv, hepatitis c, & other possibilities in yourself? Use barrier methods--condoms independent of whatever birth control your partner may be using to protect both of you from transmission of std. ...Read more

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Hepatitis b antigen negative HBV load is 13160iu/ml. Taking tenofo b for three months now HBV load is >20. Please suggest me what can i do?

Hepatitis b antigen negative HBV load is 13160iu/ml. Taking tenofo b for three months now HBV load is >20. Please suggest me what can i do?

Continue to take: You are a hepatitis B virus carrier. With the use of the antiviral agent, tenofovir, you have successfully suppressed viral replication, which will help reduce the risk of hepatitis progression. This does not mean that you are cured however, and you will need to take this medication, as prescribed, otherwise you are at risk for viral reactivation and developing a drug resistant mutation. ...Read more

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What to do about hepatitis b antigen, hep b core IgM - acute or chronic?

What to do about hepatitis b antigen, hep b core IgM - acute or chronic?

Hep B: Hep B core IgM antibody is only present in acute infection. The IgM will then be lost, and you develop Heb B core antibody total (IgG) that persists for life. After acute infection, one hopefully loses the surface antigen and develops surface antibody, which indicates lifelong immunity. The surface antibody also persists for life. If persisting surface antigen, this indicates chronic infection. ...Read more

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What's a hepatitis b antigen?

What's a hepatitis b antigen?

Coat protein : There are a number of antigens associated with hbv, notably surface, core, e, and x. The surface antigen, hbsag, is the surface coat of the virus and the most commonly tested for. ...Read more

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Medical reports of my father having alfafetoprotein(afp) is 11727.28 ng/ml , hepatitis b antigen 78.05 & HBsAG is >250iu/ml what is meant by report?

Medical reports of my father having alfafetoprotein(afp) is 11727.28 ng/ml , hepatitis b antigen 78.05 & HBsAG is >250iu/ml what is meant by report?

Elevated AFP: Given your father's history of chronic hbv infection and now with the marked elevation of afp, this is almost conclusive of possible hepatocellular carcinoma. Need to follow up with your primary care doctor, gi, and oncologist for further work up and definitive treatment. ...Read more

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Dr. Que Chu Dr. Chu
1 doctor agreed:
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How precise is the blood test for hepatitis b and c?

Dr. Que Chu Dr. Chu
1 doctor agreed:
How precise is the blood test for hepatitis b and c?

Blood test for Hep B: Very important question. Tests for Hepatitis B is very accurate but interpretation is sometimes difficult. Basically the tests will tell you if the viral infection is acute or chronic. If test positive for IgM anti- HBc (Hepatitis B core antigen) and positive HBsAg = acute infection. Persistence of HBsAg more than 6 months = chronic infection. Other scenarios exist. Consult specialist for details. ...Read more

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How much time after possible infection does hepatitis b or c show up in a blood test?

How much time after possible infection does hepatitis b or c show up in a blood test?

Hepatitis B, C: After exposure to Hep C, those who acquire infection will usually show antibody in the blood by 3 months. A PCR test may be positive within the first 2 weeks. For Hepatitis B, a person with acute infection wil develop positive serology within a wide range of 1 -10 weeks after exposure. ...Read more

Dr. Gutti Rao Dr. Rao
4 doctors agreed:
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Hepatitis b blood test non conclusive..What does that mean?

Dr. Gutti Rao Dr. Rao
4 doctors agreed:
Hepatitis b blood test non conclusive..What does that mean?

Non conclusive tests: Hepatitis b or any other test rarely can be non conclusive. To diagnose positivity, we look at different components of tests . If you have contradictory test results, it may be deemed non conclusive and you have to repeat the test in three to six months. ...Read more

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My blood test showed that i *may have* had hepatitis b in the past. How serious is this?

My blood test showed that i *may have* had hepatitis b in the past. How serious is this?

Not serious: Not serious, as long as infection not active. Hepatitis b can re-activate in the future if your immune system goes down for any reason. ...Read more

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What is hepatitis b core ab IgG blood test mean?

What is hepatitis b core ab IgG blood test mean?

Prior infection: Indicates that you very likely had hepatitis b at one point in the past. Doe not tell you about current infection or activity of the disease. These require further testing. ...Read more

Herring Antibody Test (Definition)

Testing for ige antibodies may be useful to establish the diagnosis of an allergic disease and to define the allergens responsible for eliciting signs and symptoms. Testing also may be useful to identify allergens which may be responsible for allergic disease and/or anaphylactic episode, to confirm sensitization to particular allergens ...Read more


Antigen (Definition)

Antigens are chemicals which upon exposure to the surface or inside of the body, will cause a reaction term allergic. Many substances will do this and allergic response is the basis for immunological protection for ...Read more