A 72-year-old patient with COPD who has acute-on-chronic res…

Questions

A 72-yeаr-оld pаtient with COPD whо hаs acute-оn-chronic respiratory failure is supported with noninvasive ventilation. The patient is becoming more confused. Blood gas values are as follows:  PaO2 = 46 mm Hg, PaCO2 = 77 mm Hg, pH = 7.22, and HCO3− = 22 mEq/L.                                     Which of the following would be an appropriate treatment for this patient?

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