See also: List of states and territories of the United States. This table includes abbreviations for three independent nations related to the United States through Compacts of Free Association, and other comparable postal abbreviations, including those now obsolete. Codes and abbreviations for U.S. states, territories and other regions.
Pulmonary embolism is the sudden blockage of a major blood vessel (artery) in the lung, usually by a blood clot . In most cases, the clots are small and are not deadly, but they can damage the lung. But if the clot is large and stops blood flow to the lung, it can be deadly.
Problems caused by a DVT. A small blood clot below the knee is unlikely to cause symptoms or complications. However, if a clot extends or forms above the knee, it may break away, travel in the blood, and block a blood vessel in the lung. A clot that blocks a blood vessel in the lung is called a pulmonary embolism (PE). deep vein thrombosis (DVT) is a potentially deadly condition caused by a blood clot that forms in a vein-most commonly the deep veins in the legs. This clot formation can happen if the vein is damaged or if the blood flow in the vein is slow or stops.