Hepatitis virus antigen (Australian antigen) B (HBV) HBsAg

Australian antigen or antigen HBsAg (Hepatitis B surface Antigen) is one of the components of the envelope of the hepatitis B virus. The surface antigen of the hepatitis B virus is often called the Australian antigen, because it was first detected in the blood serum of Aboriginal people in Australia. Analysis for HBsAg (Australian antigen) - determines the presence of antigen (virus) in the blood, and is the earliest indicator of hepatitis B infection. Blood analysis for HBsAg makes it possible to determine whether infection with the hepatitis B virus occurred already 10-12 days after the virus entered the the human body. This allows you to check the probability of infection of a person in the event of falling into the risk group and start treatment as soon as possible. It is also necessary to understand that the Australian antigen circulates in a person's blood for 5-6 months after infection and then disappears. The detection of surface antigen of the hepatitis B virus (Australian antigen) in the blood more than 6 months after the onset of the disease indicates the probability that hepatitis B has turned into a chronic form.
  • Indications for analysis

    Usually, the analysis is prescribed by a gastroenterologist, hepatologist or infectious disease specialist, therapists or pediatricians can also prescribe it. Often, the examination is prescribed in combination with other tests for hepatitis B

    The reason for appointing a study may be:

    -manifestations of hepatitis in the acute stage (high fever, loss of appetite, vomiting, nausea, abdominal pain, darkening of urine, lightening of feces, yellowing of the skin and sclera);
    - increased activity of ALT and AST for no apparent reason;
    - control of the effectiveness of hepatitis B treatment;
    -control of vaccination effectiveness;
    -belonging to the group of increased risk of hepatitis B infection (medical workers, pregnant women, patients with immunosuppression);
    - check of candidates for donation.

  • How to prepare for the analysis?
    In the morning on an empty stomach, you can drink clean still water. Venous blood from 2 years. The day before, you need to exclude fatty or spicy food and alcohol from the diet, as well as physical activity.
380 UAH

Where can you register in Kyiv:

location_on St. S. Rudnytskyi, 5
location_on St. V. Lypkivskogo, 45
note_alt Sign up for an analysis