Initial assessment of suspected COPD exacerbation severity and etiology

Diagnostic flowchart for assessment of suspected COPD exacerbation severity and etiology.

ECOPD: exacerbation of chronic obstructive pulmonary disease; ABG: arterial blood gas; CRP: C-reactive protein; HR: heart rate; PaO₂: arterial partial pressure of oxygen; PaCO₂: arterial partial pressure of carbon dioxide; pH: arterial acid-base status; RR: respiratory rate; SaO₂: peripheral arterial oxygen saturation, as determined by pulse oximetry; VAS: visual analog scale.

* Dyspnea (as determined by VAS), RR, HR, oxygen saturation (absolute and/or change), and CRP.

Reprinted with permission of the American Thoracic Society. Copyright © 2023 American Thoracic Society. All rights reserved. Celli BR, Fabbri LM, Aaron SD, et al. An updated definition and severity classification of chronic obstructive pulmonary disease exacerbations: The Rome proposal. Am J Respir Crit Care Med 2021; 204:1251. The American Journal of Respiratory and Critical Care Medicine is an official journal of the American Thoracic Society.

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Initial assessment of suspected COPD exacerbation severity and etiology