A nurse is implementing a plan of care for a client who has AIDS with recurring pneumonia. Which of the following actions should the nurse take?

Rationale: A. Obtaining a sputum culture is essential to identify the causative pathogen and guide appropriate antibiotic or antifungal therapy in a client with recurring pneumonia and immunocompromised status. B. Positioning the head of the bed at 10 degrees is insufficient; a semi- to high-Fowler’s position (30–90 degrees) is recommended to promote lung expansion and reduce aspiration risk. C. Coughing and deep breathing every 8 hr is inadequate; these interventions should be performed every 1–2 hr while awake to effectively mobilize secretions. D. Encouraging only 1500 mL/day of fluids may be insufficient; clients with pneumonia generally require adequate hydration to help thin secretions, unless restricted for another medical reason.