Pulmonary embolism is a disease that occurs when clotted blood accumulates in the arteries, resulting in the obstruction of blood flow in the lung. Pulmonary embolism is a significant health problem and may appear as urgent cardiovascular condition. The cause of pulmonary embolism is jammed a blood clot in an artery in the lungs. Blood clots usually occur in the lower extremities, but does not exclude the possibility of their formation in other parts of the body. Clots are expanded in both lungs, or practice dictates that the more often it is a blood clot spread in the right lung than it is in the left lung. Pulmonary embolism can be life-threatening, according to the fact that at the number of 100,000 people, 60 to 112 people will suffer from this disease, and the mortality rate in the acute phase of the disease is between 7% to 11% of cases. Quick reaction, treatments and measures to combat the formation of blood clots in the legs and other parts of the bodies can greatly help reduce the risk of death. The diagnosis of pulmonary embolism can be elusive and very often unrecognized because of nonspecific clinical picture. Symptoms of pulmonary embolism may vary, but all depends on how the affected lung clots are. Symptoms that indicate pulmonary embolism are shortness of breath, chest pain, cough that sometimes produces blood or sputum streaked with pain and / or swelling in the legs, excessive sweating, irregular heartbeat and dizziness. Pulmonary embolism can be treated in two ways, by medicaments, or with thrombolytic therapies and surgical procedures. Medications such as anticoagulants may prevent the formation of blood clots, but this way drug therapy last longer. Drugs such as thrombolytics can dissolve the blood clot quickly, but they can cause bleeding and lead patient in life-threatening condition. Therefore, it is necessary to determine whether patient belongs to the group of people that are operated in the previous ten days, pregnant women, persons who have suffered a stroke, and people tend heavy bleeding, those group of patients are not suitable for that type of treatment. Surgical procedure applies only in patients with advanced pulmonary embolism where pulmonary embolectomy and removal of emboli from the pulmonary artery can save your life. If the clots occur again, then uses the filter which prevents the transmission of blood clots in the pulmonary artery. The most important part of therapy patients is education, which includes informing the patient about the disease and how to take your medication, which leads to the recovery and, consequently, better body condition. It is important to establish a good relationship between the patient and the doctor and nurses.