Initial Management of COPD Exacerbation in the Emergency Room

Immediate Assessment and Oxygen Therapy

The British Thoracic Society recommends that patients with COPD exacerbation should be triaged as very urgent on arrival in the emergency department, especially those with respiratory rate >30 breaths/min or significant likelihood of hypercapnic respiratory failure 1
The British Thoracic Society suggests using a 24% Venturi mask at 2-3 L/min or nasal cannulae at 1-2 L/min or 28% Venturi mask at 4 L/min with a target oxygen saturation of 88-92% 1, 2
Arterial blood gases should be measured on arrival and repeated 30-60 minutes after initiating oxygen therapy, as recommended by the British Thoracic Society 1, 3

The American Thoracic Society recommends administering short-acting beta-2 agonists (e.g., salbutamol 2.5-5 mg) with or without short-acting anticholinergics (e.g., ipratropium bromide 0.25-0.5 mg) as initial bronchodilators 4, 3

The American Thoracic Society recommends administering systemic corticosteroids to improve lung function, oxygenation, and shorten recovery time 4, 3
The American College of Chest Physicians suggests prescribing prednisone 30-40 mg orally daily for 5 days if the patient can tolerate oral medications 3

The American Thoracic Society recommends prescribing antibiotics when patients present with increased dyspnea, increased sputum volume, and increased sputum purulence 4, 3
The American College of Chest Physicians suggests first-line antibiotics include amoxicillin, tetracycline derivatives, or amoxicillin/clavulanic acid for 5-7 days 3

The British Thoracic Society recommends starting non-invasive ventilation (NIV) with targeted oxygen therapy if respiratory acidosis persists for more than 30 minutes after standard medical management 1, 4
NIV should be the first mode of ventilation in patients with COPD and acute respiratory failure who have no absolute contraindications, as recommended by the American Thoracic Society 3

The British Thoracic Society recommends rechecking blood gases after 30-60 minutes (or if clinical deterioration occurs) for all patients with COPD, even if the initial PCO2 measurement was normal 1, 3
The American Thoracic Society suggests monitoring for hypercapnic respiratory failure with respiratory acidosis which may develop during hospitalization even if initial blood gases were satisfactory 1
The British Thoracic Society recommends considering spirometry at least once during hospital admission to confirm the diagnosis in cases where this is the patient's first presentation with presumed COPD 1, 5

The American Thoracic Society recommends prescribing antibiotics when patients present with increased dyspnea, increased sputum volume, and increased sputum purulence, with antibiotic choice based on local bacterial resistance patterns 6
Antibiotics should also be given if two cardinal symptoms are present with one being increased sputum purulence, or if the patient requires mechanical ventilation, according to the American Journal of Respiratory and Critical Care Medicine 6

The European Respiratory Society suggests that for patients with mild exacerbations who can be managed at home, treatment includes antibiotics, bronchodilators, encouraging sputum clearance, and fluid intake 7
The European Respiratory Society also recommends avoiding sedatives and hypnotics in patients with COPD exacerbations 7

The European Respiratory Society indicates that direct admission to the Intensive Care Unit is indicated for very severe, life-threatening episodes 8

The American Thoracic Society recommends assessing for comorbidities such as heart failure, which may mimic or accompany acute exacerbations of COPD 6