Atypical bacteria comprise only a small portion of all cases of CAP. Most patients do NOT require the addition of atypical coverage (with Azithromycin for example). Legionella coverage should primarily be given only in the months of June to October in Ontario and during Legionellosis outbreaks.
Confusion (MMSE less than 9 or new disorientation to person, place or time)
RR greater than or equal to 30 breaths/min
BP (SBP less than 90 or DBP less than 60)
Age greater than or equal to 65 yrs