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Choice of antibiotic in community acquired pneumonia

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • assess severity in adults based on clinical judgement guided by mortality risk score (CRB65 or CURB65):
    • low severity – CRB65 0 or CURB65 0 or 1
    • moderate severity – CRB65 1 or 2 or CURB65 2
    • high severity – CRB65 3 or 4 or CURB65 3 to 5
    • 1 point for each parameter: confusion, (urea >7 mmol/l), respiratory rate >= 30/min, low systolic (<90 mm Hg) or diastolic (<=60 mm Hg) blood pressure, age >= 65
    • assess severity in children based on clinical judgement
    • offer an antibiotic. Start treatment as soon as possible after diagnosis, within 4 hours (within 1 hour if sepsis suspected and person meets any high risk criteria

  • when choosing an antibiotic, take account of severity, risk of complications, local antimicrobial resistance and surveillance data, recent antibiotic use and microbiological results
  • * Stop antibiotics after 5 days unless microbiological results suggest a longer course is needed or the person is not clinically stable.





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