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Tags: Critical Care, Pulmonary
Show Notes
OVERVIEW:
Definition:
expectoration/ coughing of blood originating from tracheobronchial tree
Sources:
Bronchial arteries (90%): under systemic circulatory pressure to supply supporting structures of the lung → heavier bleeding
Pulmonary arteries (5%): under low pressure to supply alveoli → milder bleeding
Nonbronchial arteries (5%): intercostal arteries, coronary arteries, thoracic/ upper/ inferior phrenic arteries
Quantification:
Mild:
Massive defined anywhere from >300mL-1L/ 24hr
Mortality: 38% for massive (>500mL/ 24hr) vs 4.5% for nonmassive
Etiology (in adults):
Infectiou...