单选题 A client with chronic obstructive pulmonary disease (COPD) and cor pulmonale is being prepared for discharge. The nurse should provide which instructions?
A. "Weigh yourself daily and report a loss of 1 lb in 1 day. "
B. "Eat a high-sodium diet. "
C. "Weigh yourself daily and report a gain of 2 lb in 1 day. "
D. "Maintain bedrest. /

【正确答案】 C

【答案解析】COPD causes pulmonary hypertension, leading to right ventricular failure or cor pulmonale. The resultant venous congestion causes dependent edema. A weight gain may further stress the respiratory system and worsen the client's condition. He should eat a low-sodium diet to avoid fluid retention and should engage in moderate exercise to avoid muscle atrophy.