The nurse formulates a nursing diagnosis of Activity intolerance related to inadequate oxygenation and dyspnea for a client with chronic bronchitis. To minimize this problem, the nurse instructs the client to avoid conditions that increase oxygen demands such as the following（）
A. drinking more than 1,500 mL of fluid daily.
B. eating a high-protein snack at bedtime.
C. eating more than three large meals per day.
D. being overweight.
参考答案：D
解析：
Conditions that increase oxygen demands include being overweight, smoking, exposure to temperature extremes, and stress. A client with chronic bronchitis should drink at least 2,000 mL of fluid daily to thin mucus secretions; restricting fluid intake may be harmful. The nurse should encourage the client to eat a high-protein snack at bedtime because protein digestion produces an amino acid with sedating effects that may ease the insomnia associated with chronic bronchitis. Eating more than three large meals per day may cause fullness, making breathing uncomfortable and difficult; however, it doesn’t increase oxygen demands. To help maintain adequate nutritional intake, the client with chronic bronchitis should eat small, frequent meals (up to six per day).