During preoperative teaching, the patient asks the nurse why she must have nothing by mouth for 8 hours before surgery. Which of the following is the most appropriate response for the patient?
A) "Food and fluid must be restricted for 8 hours before surgery so you are not at risk for aspiration."
B) "The restriction of food or fluid will prevent the development of pneumonia related to decreased lung capacity."
C) "The presence of food in the stomach interferes with the absorption of anesthetic agents."
D) "By withholding food for 8 hours before surgery, you will not develop constipation in the postoperative period."
Ans: A
Feedback: The major purpose of withholding food and fluid before surgery is to prevent aspiration. There is no scientific basis for withholding food to prevent the development of pneumonia or interference with absorption of anesthetic agents. Constipation in patients in the postoperative period is related to the anesthesia, not from withholding food or fluid in the 8 hours before surgery.
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