Blood chemistry tests, also known as blood tests or biochemical tests, measure various substances in the blood to assess overall health and detect potential medical conditions. These tests analyze components like glucose, cholesterol, and electrolytes, providing valuable information about how well organs such as the liver and kidneys are functioning. Typically performed on a blood sample drawn from a vein, blood chemistry tests are often part of routine check-ups or specific evaluations for symptoms. Results help healthcare providers diagnose issues, monitor chronic diseases, and guide treatment decisions, making them essential tools in modern medicine.