A Clinical Guide to Pulmonary Hypertension - Hardcoverby Jim Foster (Editor) Pulmonary hypertension (PH) is a condition in which the blood pressure in the pulmonary arteries becomes too high. Pulmonary arteries are responsible for carrying oxygen poor blood from the heart to the lungs. Some common symptoms of pulmonary hypertension are shortness of breath, chest pain, fatigue, swelling in ankles, racing heartbeat and decreased hunger. Various risk factors associated with it are heart disease, lung