The duties of medical practitioners include the examination and diagnosis of patients, the prescription of medicines, performing of minor operations and provision of different treatments for injuries, diseases and other ailments br br Medical practitioners diagnose and treat diseases and injuries and perform an important function in looking after the well-being of the community Thorough knowledge of diseases and their symptoms is required for diagnoses and treatment Medical doctors first compile clinical histories of their patients before making diagnoses They make use of several techniques and different apparatus in the examination of patients, for example, blood pressure gauges, X-rays and stethoscopes, in order to form.