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GASTRIC RESIDUAL VOLUME

GASTRIC RESIDUAL VOLUME
NUTRITION SUPPORTS IN CRITICALLY ILL PATIENTS
MONITORING:-
Patients on tube feeding are at risk for fluid imbalance, gut dysfunction,and electrolyte imbalance.Refeeding syndrome is often seen in chronically under nourished patients,especially  those with electrolyte losses such as diarrhea,vomiting or renal wasting.
It has long been standard clinical practice to check the patients gastric residual volume[GRV] at regular intervals and / or prior to increasing the infusion rate of gastric tube feeding. This was done based on the theory that the risk of pneumonia would be minimized by recognizing gastric fluid accumulation and therefore predicting and reducing vomiting. However, this practice has now been shown to lack benefit, and is no longer recommended .If GRV is measured, volumes of less than 500ml should not result in the holding of the feeds unless other signs of intolerance, such as distension, nausea /vomiting are present.
Studies have shown that measurement of gastric residuals correlates poorly with aspiration risk and is associated with a decrease in calorie delivery.

Referance:- www.uptodate.com/nutrition-supports-in-critically-ill-patients

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