Hepatitis B
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Hepatitis B Diagnosis & Tests
- Hepatitis B surface antigen (HBsAg) -- this represents the first viral marker present in blood tests after the patient is infected. It usually disappears from the blood in 1-2 months.
- Hepatitis B core antibody (Anti-HBc) -- this is usually detected within 1-2 weeks of the appearance of hepatitis B surface antigen.
- Hepatitis B surface antibody (Anti-HBs) -- this is found both in those who have been immunized and those who have recovered from hepatitis infection.
- Both hepatitis B surface antibody and core antibody persist indefinitely in the blood of patients who have recovered from hepatitis B.
- Liver enzyme (transaminase) blood levels may be elevated due to liver damage.
- Albumin levels may be low and prothrombin time may be prolonged due to severe liver failure.
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