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Tests Tests to diagnose pulmonary hypertension may include: Blood tests. Blood tests can help find the cause of pulmonary hypertension . The test also may help find complications of the disease. Chest X-ray. A chest X-ray is a picture of the heart, lungs and chest. It may be used to check for other lung conditions that can cause pulmonary hypertension . Electrocardiogram (ECG or EKG). This simple test records the electrical activity of the heart. It shows how the heart is beating ... Pulmonary hypertension is increased pressure in the pulmonary circulation. It has many secondary causes; some cases are idiopathic. Pulmonary vessels may become constricted, pruned, lost, and/or obstructed. Severe pulmonary hypertension leads to right ventricular overload and failure. Symptoms are fatigue, exertional dyspnea, and, occasionally, chest discomfort and syncope. Diagnosis is made by finding elevated pulmonary artery pressure (estimated by echocardiography and confirmed by right ... Pulmonary hypertension is the most serious and common complication of pulmonary vascular disease, which encompasses any condition or disease that affects the lungs' blood vessels. Pulmonary hypertension is a condition that affects the blood vessels in the lungs. It develops when the blood pressure in your lungs is higher than normal. About 1% of people globally have pulmonary hypertension .