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9353. Hepatitis B virus (HBV), HBsAg, quantification
Description
Hepatitis B surface antigen (HBsAg) is a protein found on the surface of the hepatitis B virus.
HBsAg is detected in the blood during acute and chronic HBV infection, as well as in patients with recent HBV vaccination.
Quantitative HBsAg levels are an important marker for the effectiveness of antiviral therapy.
When and who needs the test?
- For individuals taking antiviral therapy, to monitor the effectiveness of treatment.
- For patients with viral hepatitis B, to monitor the progression of the disease.
Biological material
- Venous blood
Preparing for a blood test
In order to exclude factors that may affect the test results, we recommend to follow the preparation rules:
- an important condition for laboratory tests is to take blood on an empty stomach;
- 6-12 hours before the test, you should avoid eating, drinking alcohol, smoking, and limit physical activity. Drinking...