What tests are required for liver disease?

Comprehensive evaluation of liver disease involves several diagnostic tests, including pre-test preparation, blood tests for liver function, abdominal ultrasound, liver elastography, and etiological screening. These complementary examinations collectively assess hepatocyte injury, hepatic morphology and structure, and potential underlying causes—thereby providing a complete picture of the liver’s actual condition. If persistent discomfort or distension in the right upper abdomen, jaundice (yellowing of the skin), or other related symptoms occur, prompt medical consultation and treatment are essential.

1. Pre-test Preparation: Prior to undergoing liver-related examinations, patients must fast to ensure test results are not influenced by food intake. For several days before the examination, maintain a light diet, avoid alcohol consumption and late-night activities, and minimize intake of high-fat, greasy foods. Ensure your body is in a stable state—avoid scheduling tests during episodes of colds or fever—to prevent external factors from interfering with test accuracy.

2. Liver Function Blood Tests: Venous blood is drawn to measure key indicators such as transaminases (ALT/AST), bilirubin, and albumin. These parameters help determine whether hepatocyte inflammation or injury is present and evaluate the liver’s synthetic and metabolic capacity. As the most fundamental screening tool for liver disease, this test can detect many types of hepatic abnormalities.

3. Abdominal Ultrasound: This non-invasive imaging technique visualizes liver size, shape, and parenchymal echogenicity, while also assessing concurrent changes in the gallbladder and spleen. It effectively screens for organic conditions such as fatty liver disease, hepatic cysts, and space-occupying lesions. Due to its safety, convenience, and broad applicability, it is ideal for routine health check-ups in the general population and serves as an initial assessment of structural liver abnormalities.

4. Liver Elastography: A non-invasive method used to quantify liver stiffness and fat attenuation values. It enables differentiation of the degree of hepatic steatosis (fatty infiltration) and assessment of hepatic fibrosis progression. Complementing conventional ultrasound, elastography helps refine the evaluation of disease severity—particularly valuable for monitoring chronic liver disease progression.

5. Etiological Screening for Liver Disease: Based on findings from prior tests, targeted etiological investigations—including hepatitis virus serology and lipid metabolism panels—are performed. Such screening distinguishes between infectious causes (e.g., viral hepatitis) and metabolic disorders (e.g., dyslipidemia), thereby identifying the root cause of liver disease and guiding subsequent management and therapeutic strategies.

In daily life, avoid alcohol entirely, maintain regular sleep-wake cycles, adopt a light and nutritionally balanced diet, undergo periodic liver health screenings, and promptly pursue appropriate diagnostic testing whenever unusual physical symptoms arise—thus safeguarding long-term liver health.