Description
Why It’s Done (Purpose):
1. Confirm Active Infection:
o It is primarily used to confirm the presence of active Hepatitis B infection, especially when other tests (e.g., Hepatitis B surface antigen [HBsAg] or antibody tests) are inconclusive or need further confirmation.
2. Detect Acute or Chronic Hepatitis B:
o The test helps identify acute Hepatitis B infection (recent infection) or confirm the chronicity of the infection, especially in individuals with unclear clinical symptoms or abnormal liver function tests.
3. Monitor Newborns of Hepatitis B-Positive Mothers:
o Used to detect Hepatitis B infection in infants born to mothers who are HBV-positive, as babies may not yet produce detectable antibodies.
4. Monitor for Disease Reactivation:
o In patients who have been previously treated for Hepatitis B or those with a history of Hepatitis B infection, this test can help assess whether the virus has reactivated.
5. Help in Deciding Treatment:
o The test can help healthcare providers determine whether antiviral therapy is needed in cases of chronic Hepatitis B or reactivation of the virus.
Preparation Guidelines:
• No special preparation is typically required for this test.
• Fasting is not necessary.
• A blood sample is drawn from a vein.
• Inform your healthcare provider about:
o Any current medications you are taking (especially antivirals or immunosuppressants) that may affect the results.
o Any recent symptoms (such as jaundice, fatigue, abdominal pain) that could indicate a flare-up of Hepatitis B infection.
o A history of liver disease or prior Hepatitis B exposure.
