单选题 Which of the following activities should the nurse discourage the client with a peptic ulcer?
A. Chewing gum.
B. Smoking cigarettes.
C. Eating chocolate.
D. Taking acetaminophen (Tylenol).

【正确答案】 B

【答案解析】Cigarette smoking should be avoided because of its stimulatory effect on gastric secretions. Nicotine also increases the release of epinephrine, which leads to vasoconstriction.