Tag Massive haemoptysis
CCC Critical Care Compendium 680 2

Haemoptysis

Haemoptysis is the expectoration of blood originating from the respiratory tract below the vocal cords, ranging from minor blood-streaked sputum to life-threatening haemorrhage.

CCC Critical Care Compendium 680

Massive haemoptysis DDx

Haemoptysis is the symptom of coughing up blood. Massive haemoptysis has no generally accepted definition. Suggested volumes range from 100 mL to more than 1000 mL. A more relevant definition of massive haemoptysis is the volume that is life threatening by virtue of airway obstruction or blood loss (anatomical dead space is only 100-200 mL)