Introduction. Hemoptysis is one of the most alarming manifestations of bronchopulmonary diseases and represents 7% of hospital admissions to Internal Medicine services. Severe hemoptysis is related to high mortality in about 40%. Multiple factors that coexist with hemoptysis alter its evolution and prognosis. Not only the severity of the hemoptysis determines the risk of death, but also the presence of comorbid conditions, especially pulmonary pathologies affecting the patient’s functional reserve. Objectives. To determine the mortality and factors that increase mortality in patients with hemoptysis admitted by the Emergency Room. Design. Analytical study. Setting. Hospital Nacional Dos de Mayo, Lima, Peru. Participants. Patients with hemoptysis. Methods. We reviewed 108 clinical histories of patients who were hospitalized as an emergency with the diagnosis of hemoptysis during a time ...