What is the hang time range for closed system enteral feeding containers?

• A. 12-24 hours
• B. 48-72 hours
• C. 24-48 hours
• D. 4-8 hours

Answer: (C)

Closed-system enteral feeding containers maintain a sterile barrier between the formula and the environment, which reduces contamination risk compared with open systems. That protection allows the formula to be kept usable for a longer period after starting, so the typical hang time is 24 to 48 hours, assuming proper storage and handling (appropriate temperatures, intact system, and no spoilage). Shorter hang times (like 4–8 hours) are more typical of open systems, while extending beyond 48 hours increases the risk of microbial growth.