Acute Treatment of Pulmonary Embolism: Part 2.

A pulmonary embolism (PE) is a blood clot that forms in the blood vessels in the lungs and prevents normal blood flow in that area. Sometimes, pulmonary embolism is caused by a blood clot in the leg, called a deep vein thrombosis (DVT), breaking free and moving into the lung. If you have a PE, you will need some type of treatment. Having a PE also puts you at a higher risk for future blood clots.