Question: 5. what is a pulmonary embolism?
Answer: Pulmonary embolism occurs when a blood clot gets lodged in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often originate in the legs and travel up through the right side of the heart and into the lungs. Pulmonary embolism is a blockage in one of the pulmonary arteries in your lungs.