pulmonary edema
cardiogenic
LV failure
valvular -
pulmonary veno-occlusive
12-19 pulmonary hypertension
20-25 interstitial edema (interlobular septa, bronchovascular bundle, subpleural compartment) - kerley lines (septal thickening), pleural effusion
>25 alveolar edema - (25mmhg is normal oncotic pressure of plasma)
batwing pattern, airbronchograms (ARDS), fluid leaks into the alveoli (50% begin in RUL because associated w/mitral regurg b/c r superior pulm vein right above mitral valve and it receives regurg jet _ this is the leading idea
non cardiogenic - high capillary perm - tends to be more permanent when onset (associated with high mortality) toxin
drug
trauma
sepsis
kerley A lines - long emanate from the hila, best seen in upper lobes
B lines short thick extend to pleural base
C lines fine very short, criss cross
no real difference between A B C, merely a historical note
rt pleural effusion predominates in CHF because patient sleeps rt side down! right usually larger than left
re-expansion pulmonary edema - re-exanpsion edema more sever w/chronic edema being drained,
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