CAP vs nosocomial pneumoniae,”CAP-Community or <72 hour of being in a hospital-Typical: MCC is s.pneumo > H. influ-Atypical: Myco > C. chlam > LegionellaNosocomial-Occurs > 72hours post hospital-MCC: G-rod (e.coli, pseudo) > S. aureusTypical presentation: Fever/chills, pleuritic pain, productive cough; CXR shows lobar consolidationAtypical presentation: Sore throat/HA –> Nonproductive cough; CXR shows diffuse reticulonodular infiltrate*CXR lags up to 6 weeks*Alcoholic, think klebsiella*Immigrant, think TB*HIV, think TB or PCP*Organ failure/transplant
think legionella”