A nurse is caring for a client who is receiving intermittent enteral tube feedings. Which of the following factors places the client at risk for aspiration?

A. A history of gastroesophageal reflux disease: This factor places the client at a higher risk for aspiration. Patients with gastroesophageal reflux disease (GERD) may experience backflow of stomach contents, which can lead to aspiration, especially when receiving enteral feedings. B. A residual of 65 mL, 1 hr postprandial: While monitoring residual volumes is important to assess tolerance to feeding, a residual of 65 mL alone does not inherently indicate a high risk for aspiration. It may suggest that the feeding rate needs adjustment but isn't a direct risk factor. C. Sitting in high-Fowler's position during the feeding: This position is actually protective against aspiration, as it promotes better gastric emptying and reduces the likelihood of reflux. D. Receiving a high-osmolarity formula: While high-osmolarity formulas can sometimes lead to gastrointestinal discomfort or diarrhea, they do not directly increase the risk of aspiration. Proper management of feeding administration is key.