2 - hemoptysis Flashcards
definition of hemoptysis? pseudohymoptysis?
expectoration of blood from lower resp tract, ranges from blood tinged sputum to frank blood. pseudo = bleeding from upper resp tract or GIT
massive hemoptysis?
potentially life threatening, it’s massive if it sounds like a lot of blood
lung has a dual blood supply? majority of pulm. hemorrhage is from?
pulmonary (low pressure high flow, deoxy blood) bronchial (high pressure low flow, oxygenated blood) –> most hemorrhage is from bronchial circulation
hemoptysis ddx: 5 categories
airways. parenchymal. vascular. miscellaneous (cocaine, drugs, catamenial). idiopathic/cryptogenic.
hemoptysis ddx: common in west vs. world wide?
west: bronchitis, bronchogenic carcinoma, bronchiectasis. world wide: TB, paragonimus westermani (parasite infection)
non smoker, <50 yo, non massive hemoptysis and clear CXR: what is it reasonable to do?
probably acute bronchitis, lower resp. tract infection: give short course antibiotics and follow up in a week
ABCs?
ensure adequate IV access, adequate monitoring, and adequate help
role for bronchoscopy?
confirms bleeding is from lungs, might localize bleeding and help with diagnosis but not helpful for management
diffuse alveolar hemorrhage: is a ___ not a ____? duration? presenting symptoms?
syndrome, not a diagnosis. cough, hemoptysis, fever.
causes of DAH?
pulmonary hemorrhage (from MS, increased LVEDP, etc.) capillaritis. diffuse alveolar damage.