Haemoptysis is the symptom of coughing up blood. Massive haemoptysis is life-threatening emergency - patients do not usually bleed to death, they asphyxiate
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)
Well, not unless you filter it first. Don't drink the water. This article discusses the diagnosis and treatment of a rare condition, and pitfalls of an inadequate physical examination.