Certain liver valuesare measured in the blood to check liver health. These primarily include the enzymes GPT (ALT), GOT (AST), gamma-GT (GGT) and GLDH, which can indicate cell damage. Bilirubin and alkaline phosphatase indicate biliary disorders, while albumin and the Quick value (INR) provide information about the synthesis performance of the liver. If liver diseases such as fatty liver, hepatitis or liver cirrhosis are suspected, a comprehensive blood test is essential. Checking these values at an early stage helps to detect damage in good time and take countermeasures.