What is the recommended maximum hang time for closed enteral nutrition formulas after opening?

• A. 12 hours
• B. 24 hours
• C. 48 hours
• D. 72 hours

Answer: (A)

Limiting exposure time of enteral feeds after opening is essential to minimize microbial risk. Closed formulas are sterile in the factory, but once opened they can become contaminated through handling and the surrounding environment. To reduce the chance of bacterial growth in the formula and tubing, a maximum hang time of 12 hours is recommended. This conservative window helps ensure the feed is used before safety declines, especially if kept at room temperature. If the product is refrigerated after opening, some settings allow longer times, but many CNSC resources teach 12 hours as the standard. Always discard any formula showing spoilage or contamination and follow your facility’s policies and the product’s guidelines.