Acute Asthma Management in Patients with Pneumonia

Initial Treatment

• The British Thoracic Society recommends treating acute asthma in pneumonia patients with high-dose nebulized beta-agonists, systemic corticosteroids, and oxygen, while reserving antibiotics strictly for confirmed bacterial pneumonia 1, 2, 3
• Administer nebulized salbutamol 5 mg or terbutaline 10 mg via oxygen-driven nebulizer (40-60% oxygen) immediately, and repeat every 20-30 minutes for the first hour, then reassess 1, 2, 3
• Give prednisolone 30-60 mg orally OR intravenous hydrocortisone 200 mg immediately, and continue hydrocortisone 200 mg every 6 hours if patient is seriously ill or vomiting 1, 2, 3

Oxygen Therapy and Monitoring

• Deliver 40-60% oxygen to maintain SpO2 >92% 2, 4, 6
• Measure peak expiratory flow (PEF) before and after each bronchodilator dose, and maintain continuous oximetry targeting SpO2 >92% 4, 6

Antibiotic Use

• The British Thoracic Society explicitly states antibiotics are unhelpful in acute asthma unless bacterial infection is present 1
• Antibiotics should ONLY be given if bacterial infection is confirmed 1, 5

ICU Transfer and Discharge Criteria

• Transfer to intensive care with a physician prepared to intubate if deteriorating PEF despite maximal treatment, worsening or persistent hypoxia, hypercapnia, exhaustion, confusion, drowsiness, or coma 1, 2, 4, 6, 7
• Patients should NOT be discharged until PEF >75% of predicted or personal best, diurnal PEF variability <25%, no nocturnal symptoms, stable on discharge medications for 24 hours with verified inhaler technique, and written self-management plan provided 1, 4, 7

Critical Pitfalls to Avoid

• Never give sedatives of any kind in acute asthma, as sedation is absolutely contraindicated even in agitated patients 1, 2, 3
• Do not perform percussive physiotherapy, and do not routinely prescribe antibiotics without confirmed bacterial infection 1, 3, 5