Cough and shortness of breath are troubling symptoms that sometimes indicate the presence of a serious underlying condition. In order to diagnose and treat these conditions, the pulmonary physicians at Rockville Internal Medicine Group have developed a state of the art Pulmonary Function Lab. By performing these tests, your physician can determine lung functions as simple as how forcefully you can blow air out, or as sophisticated as how efficiently your lungs extract oxygen from the air. This testing, as well as X-ray and endoscopic evaluations when necessary, will help your physician determine the cause of your symptoms. Once that is determined, your physician can direct you to therapies to preserve and restore your health.