Which of the following statements regarding human gastric acid secretion is/are true?
A. Fasting acid secretion, normally 2 to 5 mEq/h, is due to ambient vagal tone and histamine secretion
B. Truncal vagotomy decreases basal secretion by 80%
C. Histamine2 receptor antagonist administration can decrease basal acid secretion by 80%
D. Fasting acid secretion, normally 5 to 10 mEq/h, is due to circulating levels of gastrin
Answer:A
Which of the following statements regarding human gastric acid secretion is/are true?
A. Fasting acid secretion, normally 2 to 5 mEq/h, is due to ambient vagal tone and histamine secretion B. Truncal vagotomy decreases basal secretion by 80% C. Histamine2 receptor antagonist administration can decrease basal acid secretion by 80% D. Fasting acid secretion, normally 5 to 10 mEq/h, is due to circulating levels of gastrin