A pulmonary embolism is a blood clot in the lungs that usually originates from the deep veins in the legs, where it is termed a DVT or “deep vein thrombosis.”  Many factors put people at increased risk for DVT, including immobilization, trauma, estrogen-containing medications such as hormone replacement and birth control pills, smoking, some surgeries, cancer and other medical conditions.  Patients in the hospital can also be at increased risk for blood clots, and this should be discussed with the doctors caring for your loved one in the hospital.  PE can be fatal, and common symptoms of PE include shortness of breath, difficulty breathing, and chest pain.  Awareness of the condition can lead to early diagnosis and offers the best chance at a full recovery.