Description
HbsAB Quantification HepB
Antibodies
Sample Type:Serum
Tests Included:
Quantification of Hepatitis B surface Antibodies (HbsAB)
Sample Required:
Blood sample
Test Time:
Results typically available within a few days.
Test Range Values:
Measured in international units per milliliter (IU/mL).
What is the test?
This test measures the quantity of antibodies produced against the surface antigen of the hepatitis B virus (HBV).
Test Procedure:
A blood sample is collected and analyzed to quantify the level of antibodies against HBV surface antigen.
When to take the test:
To assess immunity post-vaccination or to confirm immunity due to past infection.
Who should take the test:
Individuals needing confirmation of immunity or assessing the response to HBV vaccination.
Precautions for exceptional cases:
Notify your healthcare provider about any ongoing illnesses or medications that might affect antibody levels.
Frequently Asked Questions (FAQs) for HbsAB Quantification:
Q1: What level of HbsAB indicates immunity against HBV?
A: Typically, levels above 10 IU/mL are considered protective against HBV infection.
Q2: How long do HbsAB remain detectable post-vaccination?
A: Antibody levels can vary but often persist for years after successful vaccination.
Q3: Can low HbsAB levels after vaccination indicate lack of immunity?
A: Not necessarily; cellular immunity might provide protection even if antibody levels decrease over time.
Q4: Can a person have HbsAB without prior vaccination or infection?
A: Uncommonly, some individuals might have detectable levels due to cross-reactivity or other factors.
Q5: Can additional booster doses be given based on HbsAB levels?
A: Healthcare providers might consider booster doses if antibody levels fall below protective thresholds.
*Please note that specific testing protocols and guidelines may vary based on the latest recommendations from health authorities and regulatory agencies. It is essential to consult healthcare professionals and follow local testing guidelines for accurate and appropriate testing.
