Monitoring for Intolerance to Gastric Tube Feedings
Monitoring GRV is one way to assess gastric emptying in patients with tube feeding intolerance. Here aspirate is drawn from the stomach through the port via a small-bore feeding tube.
At some point in their education, nurses might have read a book or article by Norma Metheny, PhD, RN, FAAN, long considered an expert on fluid and electrolytes and tube feedings. She’s been researching tube feeding placement and assessment throughout her career—her current article in our August issue, “Monitoring Adult Patients for Intolerance to Gastric Tube Feedings,” marks her 12th publication in AJN.
Monitoring GRV.
Nurses have long been taught to check, before administering tube feedings, whether there are any residual contents remaining from the prior feeding. Monitoring gastric residual volume (GRV) was a key indicator to determine gastric emptying and thereby reduce the chance of regurgitation or vomiting and aspiration pneumonia.
Intolerance to feeding, as Metheny notes in her article, can be as high as 36% in critical care patients and approximately 27% […]