Hepatitis B Surface Antibody Quantitive Test

Hepatitis B Surface Antibody Quantitive Test

Wellness Testing

The Hepatitis B Surface Antibody (HBsAb) Quantitative Test is a blood test that measures the level of antibodies against the Hepatitis B virus (HBV). This test is crucial for determining immunity status to HBV, either from previous infection or vaccination.

$57.00
add to cart

  • Purpose of the Test:

    • Assesses whether an individual has developed immunity to Hepatitis B, which can occur following exposure to the virus or through vaccination.
    • Helps in evaluating the effectiveness of the Hepatitis B vaccine.

  • Understanding Results:

    • High levels of HBsAb indicate immunity to Hepatitis B, while low or absent levels may suggest a lack of immunity or insufficient response to vaccination.

  • Risk Factors for HBV Exposure:

    • Infants born to infected mothers
    • Individuals with multiple sexual partners
    • Those with a history of sexually transmitted infections
    • Men who have sex with men
    • Injection drug users
    • Healthcare workers exposed to blood and body fluids
    • Residents in areas where HBV is endemic

This test is vital for individuals at risk of HBV exposure and aids healthcare providers in making informed decisions regarding vaccination and further monitoring.

Why would I need the Hepatitis B Surface Antibody Quantitative Test?
This test is recommended for several reasons: To verify immunity: If you have been vaccinated against hepatitis B, this test confirms whether you have developed adequate immunity. Post-infection immunity: If you have recovered from a past hepatitis B infection, this test helps determine if you have developed antibodies that offer long-term protection. Healthcare and occupational requirements: Many healthcare facilities and employers require proof of hepatitis B immunity, especially for those at risk of blood or bodily fluids exposure. Pre- and post-vaccination screening: This test checks whether you need a hepatitis B vaccine or booster based on your current antibody levels. Monitoring immunity: Periodic testing may be done to ensure adequate protective antibody levels remain for individuals who are immunocompromised or at high risk of exposure.
What do the results of the Hepatitis B Surface Antibody Quantitative Test indicate?
The results are expressed in mIU/mL and are interpreted as follows: < 10 mIU/mL: Indicates no immunity or insufficient immunity to hepatitis B. If your level is below this threshold, you may need a hepatitis B vaccine or booster to develop or enhance immunity. ≥ 10 mIU/mL: Indicates adequate immunity to hepatitis B, suggesting that you are protected from previous vaccination or recovery from past infection. Very high levels: Very high antibody levels are considered protective and indicate strong immunity. There is no upper limit that is regarded as problematic, as higher levels simply mean a robust immune response.
What happens if my test results indicate a lack of immunity to hepatitis B?
If the test results show low or no antibodies (< 10 mIU/mL): Vaccination or booster: To establish or enhance immunity, it's recommended that you receive a hepatitis B vaccine or a booster dose. Follow-up testing: A follow-up test may be performed after vaccination to confirm that you have developed sufficient antibody levels.
What is the difference between the Hepatitis B Surface Antibody Quantitative Test and Hepatitis B Core Antibody IgG, IgM, Differentiation Test?
The Hepatitis B Surface Antibody Quantitative Test is used primarily for immunity assessment, while the Hepatitis B Core Antibody IgG, IgM, and Differentiation Test is used to diagnose and understand the stage of a hepatitis B infection.