Can a seven-item liver function test detect hepatitis B?

Liver function tests with seven parameters cannot directly detect hepatitis B. These tests primarily assess the liver's functional status, while diagnosis of hepatitis B requires specific testing related to the hepatitis B virus. The detailed analysis is as follows:

The core indicators of the seven-item liver function test include alanine aminotransferase (ALT), aspartate aminotransferase (AST), and bilirubin, which mainly reflect the extent of hepatocellular injury, liver metabolism, and bile excretion function. Hepatitis B virus infection may cause liver cell damage, leading to abnormal results in these liver function tests. However, such abnormalities are not unique to hepatitis B; similar changes can also be caused by other conditions including alcoholic liver disease, drug-induced liver injury, fatty liver disease, and others. Therefore, the seven-item liver function test alone cannot differentiate the underlying cause. If abnormalities are detected in the liver function tests, further specific testing for hepatitis B is required to accurately determine whether hepatitis B is responsible.

During routine health checkups, individuals should choose appropriate tests based on their personal circumstances. Those with a family history of hepatitis B or a history of high-risk exposure should proactively include hepatitis B-specific tests. Maintaining regular作息 (daily routines), avoiding excessive alcohol consumption, and reducing risk factors for liver damage are essential foundations for preserving liver health.