Which action follows GRV assessment to help prevent occlusion?

• A. 30 mL water flush
• B. 60 mL water flush
• C. Hold feedings 1 hour
• D. Instill air 5 mL

Answer: (A)

After checking gastric residual volume, the immediate step to keep the feeding tube open is to flush it with water. A 30 mL water flush is the standard amount used to clear any residual formula and prevent the tube from clogging, helping maintain patency without adding excessive volume. Using more water (like 60 mL) isn’t routinely required and can add unnecessary volume. Instilling air isn’t an effective method to clear a clog and isn’t recommended. Holding feedings for an hour isn’t about preventing a blockage right after GRV check; it’s a broader decision based on tolerance. So, a 30 mL water flush best supports keeping the tube open after GRV assessment.