Patients who have had acute PE should be asked about PE-related symptoms and functional limitations at every visit for at least 1 year to screen for chronic thromboembolic pulmonary disease or other causes of dyspnea and functional limitation. PE-M has a relatively narrow molecular weight distribution, exceptionally high toughness, excellent optical properties, and a uniform comonomer content. Because of the narrow molecular weight distribution it behaves less as a pseudoplastic (especially under larger shear rates). A pulmonary embolism (PE) is a blood clot that blocks the flow of blood to part of one lung. Many people with this condition have two or more clots in one or both lungs. Read more about a pulmonary embolism, which is when a blood clot blocks a blood vessel in your lungs. It can be life-threatening if not treated quickly. Pulmonary Embolism (PE) - Etiology, pathophysiology, symptoms, signs, diagnosis & prognosis from the Merck Manuals - Medical Professional Version. A pulmonary embolism (PE) occurs when a blood clot gets stuck in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs. A pulmonary embolism (PE) is a blood clot that travels to your lungs from somewhere else in your body and blocks blood flow. Usually, the clot starts in a vein in your leg or pelvis. A pulmonary embolism (PE) happens when a blood clot blocks one or more pulmonary arteries in the lungs. This reduces or stops blood flow to part or all of the lungs. A PE can be fatal. Seek medical help right away if you think you have symptoms. A pulmonary embolism (PE) can strike with no symptoms. But most of the time, your body will let you know something’s wrong. WebMD describes the telltale signs and explains when to call the doctor. Pulmonary embolism. Pulmonary embolism (PE) is a blockage of an artery in the lungs by a substance that has moved from elsewhere in the body through the bloodstream (embolism). [6] Symptoms of a PE may include shortness of breath, chest pain particularly upon breathing in, and coughing up blood. [1].