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Sample type :
SERUM
Hepatitis B surface antigen (HbsAg) is a part of the surface of Hepatitis B virus (HBV). This is the first antigen /marker to appear in blood after 4-12 weeks following infection with HBV.
HBV is spread through contact with blood and body fluids either through blood transfusion or sexual transmission.
It causes infection of liver(Hepatitis)
Patients with chronic hepatitis B are at an increased risk of developing complications like damage to the liver, liver failure, and liver cancer.
This test detects the HbsAg in the blood. It can be further confirmed by HBV DNA PCR.