Hepatitis B Virus DNA, Quantitative

The HBV DNA test, also known as the Hepatitis B Virus DNA test, is a diagnostic test used to measure the amount of hepatitis B virus genetic material in a person's blood. This test is crucial in assessing the severity of a hepatitis B infection. By analysing the viral DNA, clinician can determine the viral load, which is the amount of virus present in the blood.

By quantifying the virus, clinician can make informed decisions regarding treatment and evaluate the effectiveness of antiviral medications. The test is important for below conditions-

• Helps distinguish between an active and inactive infection
• Helps monitor a patients response to treatment
• Predicting Disease Outcomes
• Guiding Treatment Decisions
• Preventing Transmission

The HBV DNA PCR test is intended for use only in individuals with documented HBV infection and is not to be used for the diagnosis of HBV infection. Monitoring of viral load may be helpful in making or altering treatment regimens in HBV infected patients.

Hepatitis B virus (HBV) is a member of the Hepadnavirus family that causes an infectious inflammatory disease of the liver. Most individuals with chronic hepatitis B remain asymptomatic for many years or decades. Patients with HIV infection or post-organ transplant patients taking immunosuppressive drugs are at higher risk of developing chronic infection. However, patients with chronic hepatitis B are at risk of developing hepatocellular carcinoma (HCC). Viral DNA enters the nucleus and integrates into the host DNA immediately after infection. HBV replication initiates increased DNA synthesis and interferes with normal cellular detoxification and repair functions, causing chronic liver cell injury that leads to HCC.

Hepatitis B is also called as a silent epidemic because people simply do not have symptoms while being chronically infected or newly infected. Symptoms appear later when significant liver damage has occurred, ultimately leading to liver cirrhosis and liver cancer. Those who are silent carriers spread the disease unbeknownst to them. Since the liver has the capacity to function even when it is up to 80%, symptoms do not appear until there is significant liver damage.

Other names: HBV DNA test, HBV DNA Quantitative test, hepatitis, hepatitis B