Biochemical tests are used in disease diagnosis to detect the presence of certain enzymes, hormones, proteins, and other molecules in the body. These tests are used to diagnose a variety of illnesses and conditions, such as cancer, heart disease, and diabetes. By detecting the presence of specific biochemical markers, medical professionals can determine the severity of the disease and recommend treatment plans. Biochemical tests involve collecting a sample of blood, urine, or other bodily fluids and examining the sample in a laboratory. The sample is analyzed to detect levels of specific molecules or metabolites. These molecules can be used to determine the presence or absence of a disease, as well as its severity. Some biochemical tests are used to diagnose specific diseases, such as kidney disorders or liver disease. Other tests can be used to detect the presence of certain hormones in the body, such as testosterone or estrogen. Additionally, biochemical tests can be used to measure the levels of certain vitamins and minerals in the body, such as iron or calcium. Biochemical tests are essential for diagnosing and managing many diseases and medical conditions.They provide medical professionals with important information about the body’s chemical makeup and allow them to develop effective treatment plans.