A nurse performs a head-to-toe assessment on a newly admitted client. Data analysis reveals temperature 100.94°F (38.3°C), blood pressure 82/58 mm Hg, 02 saturation 95% on room air, productive cough, lethargy, diaphoresis, WBC 15,000 mm3, hemoglobin 9 g/dl, and hematocrit 29%. Based on the analysis of the data, which of the following client concerns is a priority?