Clinical scenario: An adult patient with COPD in the emergency department has increasing work of breathing, a pH of 7.28, a PaCO2 of 68 mm Hg, and remains awake and cooperative. Which action should the respiratory therapist recommend next?
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A
Initiate noninvasive ventilation
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B
Administer a short-acting bronchodilator only
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C
Reduce supplemental oxygen immediately
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D
Continue observation without intervention
Why A
A pH of 7.28 with a PaCO2 of 68 is acute-on-chronic respiratory acidosis. The patient is awake and cooperative, so noninvasive ventilation can reduce work of breathing and improve ventilation without intubation. Reducing oxygen (C) treats a number rather than the patient and risks hypoxemia.