Community-Acquired Pneumonia Management

Immediate Clinical Assessment

The British Thoracic Society recommends initiating empiric antibiotic therapy immediately with amoxicillin-clavulanate 875/125 mg twice daily for 7 days, or azithromycin 500 mg daily for 3 days as an alternative, and assessing severity using clinical criteria to determine if hospital referral is needed 1, 2
The presence of bilateral crackles on chest auscultation indicates pneumonia and warrants urgent evaluation for disease severity, using the CRB-65 scoring system to determine management setting 1, 2
A CRB-65 score of 0-1 indicates likely suitability for outpatient treatment, while a score of 1-2 suggests considering hospital referral, and a score of 3-4 requires urgent hospital referral 2
Patients with bilateral chest signs should be considered for hospital referral regardless of CRB-65 score, due to possible primary viral pneumonia or severe bacterial pneumonia with higher mortality risk 1, 2

The British Thoracic Society recommends amoxicillin-clavulanate 875/125 mg twice daily for 7 days as first-line therapy, providing coverage against common pathogens such as Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis 1, 3
Azithromycin 500 mg once daily for 3 days is an effective alternative for patients with penicillin allergy, providing coverage against atypical pathogens 1

A chest radiograph should be obtained to confirm pneumonia diagnosis when acute cough is accompanied by new focal chest signs, dyspnea, tachypnea, or fever lasting >4 days, as recommended by the European Respiratory Society 4, 5
Antibiotic therapy should not be delayed waiting for chest radiograph results if clinical suspicion for pneumonia is high and the patient appears ill 1

The British Thoracic Society recommends avoiding routine use of cough suppressants in productive cough, as expectoration helps clear secretions, but considering dextromethorphan 60 mg or codeine for short-term relief if cough is severely distressing and interfering with sleep 6, 5
Mucolytics such as acetylcysteine or hypertonic saline should be avoided if any hemoptysis is present, as they increase secretion volume and induce cough, potentially worsening bleeding 7

The European Respiratory Society advises against assuming viral bronchitis when bilateral crackles are present, as this indicates pneumonia requiring antibiotics 1, 2, 4
The European Respiratory Society recommends against using antibiotics for simple acute bronchitis without pneumonia, but the presence of bilateral crackles changes this assessment 4
The British Thoracic Society advises against discharging patients with bilateral infiltrates without careful consideration of hospital admission, as mortality risk is substantially elevated 1
The European Respiratory Society recommends against using fluoroquinolones as first-line therapy in community settings, reserving them for treatment failures or high local resistance rates 4

The British Thoracic Society recommends reassessing patients within 48-72 hours if managed as outpatients to ensure clinical improvement, and having them return immediately if experiencing worsening dyspnea, persistent fever beyond 72 hours of antibiotics, or development of confusion 2
Clinical improvement should be evident within 48-72 hours of appropriate antibiotic therapy, as expected by the British Thoracic Society 2