A pulmonary embolism, also called a PE, is a medical condition in which a thrombosis blocks blood flow in one or more arteries of the lungs. It is very dangerous and could cause severe complications, possibly even death. When blood flow in the lungs is blocked, oxygen levels can go down and can cause difficulty breathing. Without oxygen, brain cells will die.
What is a thrombosis?
A thrombosis is an abnormal blood clot that has formed inside of any vein or artery and is big enough to prevent good blood flow. They can be dangerous/deadly if a part breaks off and travels to other areas of the body or completely blocks blood flow.
What is a blood clot?
A blood clot is a mass of blood cells, platelets and clotting proteins that is normally made by the body after an injury to stop bleeding. However, blood clots can also form for reasons such as poor blood flow, taking certain medications, having other medical conditions that have a high risk for the blood to clot and having other risk factors that increase the risk for the blood to clot. When a blood clot is made abnormally or grows bigger than normal, it causes a problem with blood flow, preventing the transportation of oxygen.