Case Study (Pneumonia-Adult) Exhibits Which intervention is most appropriate to improve the patient's oxygenation?

A. Administer IV antibiotics: Antibiotics are essential for treating the underlying infection, but their effect on improving oxygenation is not immediate. While they target the pneumonia-causing pathogen, they do not directly support respiratory function in the acute phase. B. Encourage oral fluids: Hydration helps thin secretions and supports overall recovery, but oral fluids alone will not rapidly improve oxygen saturation in a patient with hypoxemia. This intervention is supportive but not the most urgent or direct for addressing oxygenation. C. Apply nasal cannula oxygen @ 2L/min via nasal cannula: With an oxygen saturation of 89%, immediate oxygen supplementation is necessary to improve tissue oxygenation and prevent hypoxia-related complications. Administering oxygen by nasal cannula is the most appropriate and timely action to increase oxygen delivery. D. Monitor blood glucose levels: Blood glucose monitoring is important, especially in a diabetic patient with infection, but it does not address the respiratory compromise. It is a priority for metabolic management, not for improving oxygenation directly.