Assessment of severe exacerbations

Severity depends on patient's prior status and any changes to previous baseline investigation (based on symptoms, examination, lung function, ABG). Use of accessory respiratory muscles, paradoxical respirations, cyanosis, new peripheral edema, hemodynamic instability, and/or worsened mental status (e.g., confusion, lethargy, coma) are important indicators of severity of exacerbation.[1]

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