How do you test for HBsAg?
The One Step HBsAg Whole Blood Test is based on the principle of sandwich immunoassay for determination of HBsAg in serum or whole blood.
Monoclonal and polyclonal antibodies are employed to identify HBsAg specifically.
This one step test is very sensitive and only takes 10 minutes..
What does it mean if HBsAg is negative?
Normal results are negative or nonreactive, meaning that no hepatitis B surface antigen was found. If your test is positive or reactive, it may mean you are actively infected with HBV. In most cases this means that you will recover within 6 months.
How long is HBsAg detectable?
HBsAg will be detected in an infected person’s blood an average of 4 weeks (range: 1–9 weeks) after exposure to the virus.
Is HBsAg curable?
Most adults with hepatitis B recover fully, even if their signs and symptoms are severe. Infants and children are more likely to develop a chronic (long-lasting) hepatitis B infection. A vaccine can prevent hepatitis B, but there’s no cure if you have the condition.
What is the treatment of HBsAg positive?
Several antiviral medications — including entecavir (Baraclude), tenofovir (Viread), lamivudine (Epivir), adefovir (Hepsera) and telbivudine (Tyzeka) — can help fight the virus and slow its ability to damage your liver. These drugs are taken by mouth. Talk to your doctor about which medication might be right for you.
Is fasting required for HBsAg test?
A Hepatitis B (HBV) Blood Test Panel includes a Hepatitis B Core Antibody Total (Test #006718), Hepatitis B Surface Antigen (Test #006510), Hepatitis B Surface Antibody (Test #006395). Preparation: No fasting required. Stop biotin consumption at least 72 hours prior to the collection. Test Results: 2-3 days.
What is the HBsAg positive?
A positive HBsAg test result means that you are infected and can spread the hepatitis B virus to others through your blood. anti-HBs or HBsAb (Hepatitis B surface antibody) – A “positive” or “reactive” anti-HBs (or HBsAb) test result indicates that a person is protected against the hepatitis B virus.
How accurate is HBsAg test?
The overall pooled clinical sensitivity and specificity of rapid HBsAg tests were 90.0% (95% CI: 89.1, 90.8) and 99.5% (95% CI: 99.4, 99.5), respectively, compared to laboratory-based immunoassay reference standards.
Can HBsAg be false positive?
If the “HBsAg” was positive, this means that you are either chronically infected with hepatitis B or were recently infected. If only the “anti-HBc” was positive, it is most likely that you either had a “false-positive” test or are immune to hepatitis B infection (had hepatitis B infec- tion sometime in the past).