Pulmonary embolism is a common condition in emergency clinicsnand has a high mortality rate. Hypotension and shock can be in large,nnlife-threatening PEs. Its recurrence, variable clinical presentation, and of-nten nonspecific make diagnosis difficult. The fact that early treatment isnnhighly effective is very important for early diagnosis.nnPulmonary embolism (PE) is a condition in which the pulmonary ar-ntery or one of its branches is partially or completely blocked by materialnnoriginating from another part of the body (e.g. tumor, thrombus, fat, air).nIt is the clinical picture that occurs as a result of obstruction.