A client who had bariatric surgery 2 months ago is admitted because of vomiting and inability to tolerate food and liquids. The client is pain free. Which intervention should the nurse include in the client's plan of care?

A. Encourage positive self accolades for dietary adherence: While supportive reinforcement is helpful for long-term behavior change, it does not address the immediate problem of vomiting and inability to tolerate food and liquids. B. Determine if the client is over-hydrating to feel satiated: Assessing hydration habits may be part of long-term dietary counseling, but it is not the priority intervention when the client is acutely vomiting and unable to tolerate intake. C. Maintain the client on an NPO status: Keeping the client NPO prevents further vomiting, reduces the risk of aspiration, and allows the gastrointestinal tract to rest. This is the immediate priority intervention in managing post-bariatric surgery complications such as obstruction or delayed gastric emptying. D. Administer daily vitamin supplements: Vitamins are important for nutritional maintenance after bariatric surgery, but administering them orally is not appropriate when the client cannot tolerate food or liquids. Nutritional support should be deferred until tolerance improves.