Table 5.

Treatment of adults with community-acquired pneumonia

Patient Characteristics	Regimen
Outpatient: previously healthy	Macrolide Doxycycline
Outpatient: with comorbidities (heart, lung renal disease, diabetes, alcoholism) or recent use of antibiotics concerning for drug-resistant Streptococcus pneumoniae	Respiratory fluoroquinolone Beta-lactam plus macrolide
Outpatient: macrolide-resistance streptococcus areas (>25% of infection)	Respiratory fluoroquinolone Beta-lactam plus macrolide
Inpatient: floor	Respiratory fluoroquinolone Beta-lactam plus macrolide
Inpatient: intensive care unit	Beta-lactam plus azithromycin or respiratory fluoroquinolone Penicillin allergic: respiratory fluoroquinolone plus aztreonam
Inpatient: Pseudomonas	Antipseudomonal beta-lactam such as piperacillin-tazobactam, cefepime, meropenem, imipenem plus ciprofloxacin or levofloxacin
Inpatient: methicillin-resistant Staphylococcus aureus	Vancomycin or linezolid