A nurse is providing preoperative teaching for a patient who is scheduled for a gastrectomy.Which of the following information regarding the prevention of postoperative complications should the nurse include in the teaching?

Choice A rationaleWhile pain management is crucial postoperatively, teaching the client how to use a PCA pump does not directly prevent common postoperative complications like pneumonia, deep vein thrombosis, or wound infections. These complications are more directly addressed by respiratory exercises and early mobilization.Choice B rationaleInstructing the client on coughing and deep breathing exercises is essential for preventing postoperative pulmonary complications such as atelectasis and pneumonia. These exercises help to expand the lungs, mobilize secretions, and improve oxygenation, reducing the risk of infection and respiratory distress.Choice C rationaleExplaining the importance of early ambulation is vital in preventing several postoperative complications. Mobilization improves circulation, reducing the risk of deep vein thrombosis and pulmonary embolism. It also helps to promote bowel function and prevent constipation, as well as aiding in lung expansion and preventing atelectasis.Choice D rationaleDiscussing the use of incentive spirometry is important for preventing postoperative respiratory complications. Incentive spirometry encourages deep and sustained inhalation, which helps to expand the alveoli, improve lung volume, and prevent atelectasis and pneumonia.