Final answer:
The correct instruction for managing dumping syndrome after a partial gastrectomy is to eat protein with each meal to slow gastric emptying and alleviate symptoms.
Step-by-step explanation:
In managing dumping syndrome post partial gastrectomy, it is crucial for patients to adopt specific dietary habits. Among the instructions a nurse should provide, the correct guidance would be to eat protein with each meal. Protein helps in slowing gastric emptying and can mitigate symptoms of dumping syndrome.
Other beneficial practices include eating several smaller meals throughout the day to maintain stable energy, blood glucose, and insulin levels, staying hydrated with water or unsweetened beverages, and increasing the intake of high-protein foods. Patients should avoid consuming large quantities of fluids, especially sweetened beverages, with meals, and not use simple sugars like honey to flavor foods as these can exacerbate symptoms.