HBsAg (hepatitis B)
About
HBsAg is a protein found on the surface of the virus that causes hepatitis B. It appears in both acute and chronic infections, making it a key marker for screening and confirming HBV infection. It is the earliest indicator of acute hepatitis B, often detected even before the onset of the first symptoms of the disease, and is also a primary marker of chronic infection.
Hepatitis B is a disease characterized by inflammation and enlargement of the liver caused by the hepatitis B virus (HBV). HBV is the most common cause of acute hepatitis and the most widespread cause of chronic viral liver infections. It is transmitted through infected blood or sexual contact. Chronic hepatitis B can sometimes lead to cirrhosis or liver cancer.
Candidate
You should undergo this test if you have symptoms of hepatitis or have been at risk of HBV infection, if you have chronic liver disease due to another cause, if you are being treated for hepatitis B, if you are an intravenous drug user, or if you engage in unprotected sexual intercourse. Additionally, you should get tested if you experience symptoms such as fever, fatigue, loss of appetite, nausea, vomiting, abdominal pain, dark urine, pale stool, jaundice, if you are pregnant, if you are HIV-positive, or if you have been in close contact with individuals who have hepatitis B.
Preparation
No special preparation is required.
Treatment
For this test, a blood sample is taken from a vein.
Result
The results are available the same day.
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