Biochemistry laboratories have many functions in the study of diseases:

• Doctors need to apply for some tests in order to determine the appropriate diagnosis according to the patient's complaints and to make the necessary diagnosis. The unit that provides these tests is the biochemistry laboratory.
  Biochemistry laboratories take part in the process of interpreting the results of the tests recommended by the doctors.

• On the other hand, biochemistry laboratories play a role in the process of deciding on the tests to be applied to the patients.

Biochemistry laboratories work in collaboration with clinicians and doctors. The biochemistry laboratory undertakes the task of testing the fluid samples taken from the body (blood, urine and fluids taken from the body cavities, etc.) and reporting the results. This unit usually performs the tests requested by the doctors, but sometimes it can also recommend tests for the correct diagnosis and treatment of diseases. In this case, the tests applied by the biochemistry laboratory are listed as follows:

• Routine biochemical tests
• complete blood count tests
• blood gases
• Cardiac (related to the heart) markers
• Tumor markers
• Coagulometric (coagulation-related) tests
• drug levels
• Metabolic diagnosis and screening tests
• Toxicology tests
• urine tests
• electrolytes
• Electrophoresis tests
• Hormone tests
• Enzyme tests
• RIA tests (It is known as radioimmune test with its full name and it is a method generally used for hormone tests in endocrinology.)