Which statement about GRV measurement practices is true?

Which statement about GRV measurement practices is true?

• A. Small-bore feeding tubes should be used to draw GRV
• B. GRV measurement is universally standardized
• C. GRV has no relation to pneumonia
• D. Promotility agents should be considered when GRV > 250 mL

Answer: (D)

GRV measurement is used to assess how well the stomach is emptying and whether a patient is tolerating enteral feeds. A high residual volume can indicate delayed gastric emptying and raises concern for aspiration risk, so it guides decisions about continuing feeds and using interventions to improve tolerance. The idea that a small-bore tube should be used to draw GRV isn’t a fixed rule—tube size isn’t the determinant of accuracy, and measurement technique varies, which is why there isn’t a universal standard for GRV measurement across all settings. It’s also not true that GRV has no relation to pneumonia; higher residuals are associated with an increased risk of aspiration and related pneumonia, though the strength of that relationship can vary in the literature. When GRV exceeds a reasonable threshold, typically around 250 mL, considering promotility (prokinetic) therapy is appropriate to enhance gastric emptying and reduce residuals, enabling better tolerance of feeds. Examples include metoclopramide or, in some cases, erythromycin, with careful attention to potential side effects and contraindications.

GRV measurement is used to assess how well the stomach is emptying and whether a patient is tolerating enteral feeds. A high residual volume can indicate delayed gastric emptying and raises concern for aspiration risk, so it guides decisions about continuing feeds and using interventions to improve tolerance. The idea that a small-bore tube should be used to draw GRV isn’t a fixed rule—tube size isn’t the determinant of accuracy, and measurement technique varies, which is why there isn’t a universal standard for GRV measurement across all settings. It’s also not true that GRV has no relation to pneumonia; higher residuals are associated with an increased risk of aspiration and related pneumonia, though the strength of that relationship can vary in the literature. When GRV exceeds a reasonable threshold, typically around 250 mL, considering promotility (prokinetic) therapy is appropriate to enhance gastric emptying and reduce residuals, enabling better tolerance of feeds. Examples include metoclopramide or, in some cases, erythromycin, with careful attention to potential side effects and contraindications.