Diagnosis of heptitis B

Hepatitis B is an infectious disease caused by viruses. Depending on the symptoms, if a person is suspected of being hepatitis B in a person, then he first examines his blood. For this, the antigen and antibody of Hepatitis B in the blood is checked, but if the person has taken hepatitis B vaccine or has been infected for a long time, its blood test results may be positive. But only those hepatitis B surface antibodies will appear in the blood of that person. The second marker of hepatitis B virus will be absent in it.

Hepatitis B is checked, in the following ways:

Hepatitis B surface antigen (HBsAg) – These antigens begin to look into the body as soon as Hepatitis B is transmitted. Even before the symptoms of HBV infection appear, these antigens are present in the patient’s body. If there is no symptoms of Hepatitis, for 6 months, then this disease reaches the chronic condition. In this way, such a person can spread the disease in other people too.

Hepatitis B Surface Antibody (HBsAb) – It is mainly visible around Hepatitis B surface antibody after about 4 weeks of the ending of hepatitis B antigen. It means that its infection is gradually decreasing from that person’s body and it can not infect others as well. This test is often done after taking the vaccine for Hepatitis B, so that it can be ascertained whether the person is required to take the dose of the vaccine or not. If, during the investigation, it is known that if a person has both HBsAb antibody and HBsAg antigen in their body, then it means they have been infected with Hepatitis B, but this is rarely seen.

Hepatitis B e-antigen (HBeAg) – If the infection is in a hurry and it is active, then such person’s body is found to have HBV proteins. This test determines whether the person can transfer the disease to other people or not. By checking this antigen also it is detected that the effect of the treatment of HBV on the patient is studying.


HBV DNA Testing – In this test, the genetic material (DNA) of the Hepatitis B virus is examined. The HBV DNA test detects the amount of genetic material in the patient is present in the patient. If it is too much genetic material in the body, it means that the virus is growing in its body very fast and it can infect others too. If patients with chronic infection (the stage of long-term infection) so many chances of having this test it is determined that his liver damaged and needs to antiviral medicine or not. If the patient is undergoing treatment at this stage then this test is also seen to see the effect of treatment on him. HBV DNA testing is a more sensitive test than HBeAg to check HBV in the blood.

Liver biopsy – If the doctor is suspected that due to hepatitis B, the patient’s liver has been damaged, then he can biopsy the liver to know about the condition of the liver.

Liver Function Test – If a person is infected with Hepatitis B for a long time and he does not have any information about this, then his liver starts getting worse. To know what has been done on the patient’s liver due to doctor, hepatitis B, you can test the liver function.

Ultrasound Scan – To know the condition of the doctor liver, you can also advise to do sonography of the stomach.

Polymerase Chain Reaction (PCR) test – The virus of Hepatitis B is detected to detect viral load in the blood and to determine the treatment. Viral load means the amount of virus in the blood per milliliters.

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