Practice Quiz

CMSRN Medical-Surgical Nursing

Category - Gastrointestinal

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The nurse explains to a client that a vagotomy is done in conjunction with a subtotal gastrectomy because the function of the vagus nerve is to:
  1. Stimulate increased gastric motility
  2. Decrease gastric motility, thereby preventing the movement of HCl out of the stomach
  3. Stimulate both increased gastric secretion and gastric motility
  4. Stimulate decreased gastric secretion, thereby increasing nausea and vomiting
Explanation
Answer - C - The vagus nerve stimulates an increase in both hydrochloric acid secretion and gastric motility. Vagotomy not only decreases hydrochloric acid secretion, but also alters the motility of the stomach and intestines; this may result in a sensation of fullness after meals, eructation, and abdominal distention. Choice A is incomplete. Choices B and D are the reverse of effects of vagal action.
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