William Franklin Young, Jr. Michael W. Stava
Clini.cal .Features and Diagnosis
Hemoptysis is expectoration of blood from the respiratory tract below the level of the larynx. Hemoptysis presents a diagnostic dilemma due to its multiple causes, ranging from minor to life threatening. Up to 25 percent of cases remain undiagnosed even after extensive evaluation. Priorities in the evaluation of hemoptysis are (1) ensuring adequate oxygenation and ventilation, (2) confirming a pulmonary source of bleeding, (3) looking for neoplasia and systemic disease (e.g., pulmonary embolism or Wegener granulomatosis), (4) appropriate radiographic imaging, and (5) appropriate disposition.
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