Clinical Chemistry is a central branch of the Laboratory Analysis, dedicated to studying biochemical alterations occurring in the body due to diseases. Through the quantitative analysis of molecules present in biological samples, primarily blood and urine, this sector provides physicians with an objective and detailed overview of metabolism and organ functionality. Fundamental parameters for assessing health status are analyzed, such as blood glucose, total and HDL cholesterol, triglycerides, creatinine for kidney function, and bilirubin for liver function. Clinical Chemistry is also crucial for evaluating potential liver damage through specific markers (GOT, GPT) and for identifying tumor markers, which can indicate the presence of a neoplasm and guide further diagnostic investigations. The results of these tests are indispensable for prevention, diagnosis, and therapy monitoring.