After a gastrectomy, the client will have a nasogastric tube in place for several days postoperatively. The nurse explains to the client that the nasogastric tube is for which of the following reasons
A．Prevent excessive pressure on suture lines.
B．Prevent the development of ascites.
C．Provide enteral feedings in the immediate postoperative period.
D．Enable administration of antacids to promote healing of the anastomosis.
参考答案：A
解析：Nasogastric suctioning is ordered to remove accumulated gas or fluid (secretions). Excessive fluid can cause pressure on suture lines, resulting in injury, rupture, or dislodgment. The gastrointestinal tract should remain empty (no food or fluids) until peristalsis returns and suture lines have healed adequately, at which time the nasogastric tube is removed.