How to perform liver and kidney function tests

Liver and kidney examinations are primarily conducted through the following methods: 1. **Blood tests**: Blood tests are used to assess liver and kidney function. Liver function tests include measuring indicators such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), and bilirubin. Kidney function tests include measuring creatinine and blood urea nitrogen (BUN). These indicators reflect the functional status of the liver and kidneys. 2. **Urine tests**: Urine analysis can detect urinary protein, hematuria, and other abnormalities. In particular, measurement of urinary microglobulin helps evaluate the reabsorption function of the renal tubules. 3. **Imaging studies**: Techniques such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI) can be used to examine the morphology and structure of the liver and kidneys, aiding in the detection of lesions or abnormalities. Before undergoing liver and kidney examinations, it is important to fast for 8 to 12 hours and avoid factors that may affect test results, such as alcohol consumption and staying up late.