2402. Hepatitis B virus (HBV), HBcorAg, IgG antibodies
Description
Hepatitis B virus (HBV) is an infectious agent that causes the development of hepatitis B. It is transmitted from a sick person to a healthy parenteral (through blood and damaged skin and mucous membranes), sexual and vertical (from mother to child) ways. The body reacts to the appearance of virus antigens by secreting antibodies. The first in response to the penetration of the virus are IgM antibodies to the HBcorAg antigen, a little later IgG to this antigen appear.
Determination of IgG antibodies allows detecting hepatitis B virus infection in the acute period and during convalescence. It is widely used for the diagnosis and differentiation of hepatitis.
When and who needs the test?
- control over the course of acute viral hepatitis B (seroconversion);
- identification of a past infection;
- differential diagnosis of post-vaccination immunity and past hepatitis B.
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...