Anti-HBs (Hepatitis B Surface Antibody) ​The Anti-HBs (Hepatitis B Surface Antibody) test is a vital blood diagnostic used to determine if a person has immunity against the Hepatitis B virus (HBV). This test detects the presence of protective antibodies that the body produces after being exposed to the virus or, more commonly, after receiving the Hepatitis B vaccine. It is the primary way to confirm if your body is successfully protected from future infection. ​Why should you take this test? ​Vaccination Check: To confirm if the Hepatitis B vaccine series has successfully provided immunity. ​Recovery Status: To determine if a patient has fully recovered from a past acute Hepatitis B infection. ​Screening for Healthcare Workers: Highly recommended for medical professionals to ensure they are protected against workplace exposure. ​Pre-treatment Screening: Often required before starting certain medical treatments or before blood donations. ​Test Specifications: ​Sample Type: Blood (Serum) ​Preparation: No fasting required; can be performed at any time. ​Reporting: Quantitative results (IU/L) provided to show the exact level of protection.