问题
单项选择题
An 82-year-old female is transferred to the hospital from a long-term care facility because of severe diarrhea. She is weak and dehydrated. Which acid-base imbalance could the client develop as a result of diarrhea（）
A. Respiratory acidosis.
B. Metabolic acidosis.
C. Carbonic acid deficit.
D. Metabolic alkalosis.
答案
参考答案：B
解析：
Diarrhea causes the body to lose bicarbonate, which may cause metabolic acidosis. Respiratory acidosis is caused by alveolar hypoventilation. Carbonic acid excess occurs with respiratory alkalosis. Vomiting could lead to metabolic alkalosis.