In adults with persistently elevated gastric residual volumes (GRVs), which intervention is most appropriate to consider?

• A. Pro-motility agents
• B. Proton pump inhibitors
• C. NPO with TPN
• D. Antacids

Answer: (A)

When gastric residuals stay high, the stomach isn’t emptying properly, so the aim is to improve gastric motility to better tolerate enteral feeding. Prokinetic medications stimulate the GI tract to move contents more efficiently, which reduces residual volumes and lowers aspiration risk. Metoclopramide enhances upper GI motility and speeds gastric emptying, while erythromycin acts on motilin receptors to boost gastric contractions. Using these agents helps convert a feeding that's poorly tolerated into one that can be advanced safely and effectively.

Other options don’t address the underlying motility problem. Reducing acid with proton pump inhibitors or giving antacids won’t improve gastric emptying. Keeping the patient NPO and using total parenteral nutrition bypasses the gut, which can lead to mucosal atrophy and complications. Simply avoiding feeds without addressing motility won’t resolve the issue.

If using a prokinetic, monitor for side effects and use the lowest effective dose, adjusting based on response and tolerance.