What initial intervention should a nurse take when a patient is on continuous feeding and gastric residual is noted at 300 mL?

Holding the feeding and reassessing the gastric residual in one hour is the most appropriate initial intervention in this scenario. A residual of 300 mL indicates that a significant volume of formula is still present in the stomach, which may suggest that the patient's gastrointestinal (GI) motility is impaired or that the feeding rate may be too rapid.

By pausing the feeding, the nurse allows the stomach time to process the current content and reduces the risk of complications such as aspiration pneumonia, abdominal distension, or diarrhea. Assessing the residual again in one hour provides important insight into the patient's tolerance to the feeding. If the residual volume decreases significantly, the feeding can potentially be resumed, possibly at a slower rate.

This option emphasizes the importance of closely monitoring the patient's response to continuous feeding and ensuring safety while managing their nutritional needs. The other options involve either continuing the feeding without reassessment, which could pose a risk to the patient, or notifying the healthcare provider without first taking appropriate steps to manage the situation at the bedside. Starting a bowel regime may be useful in the long term but does not directly address the immediate concern regarding the high gastric residual.