Powdered formulas reconstituted in advance should be refrigerated immediately after reparation and discarded within 24 hours if not used. They should also be exposed to room temperature for no longer than how many hours?

• A. 2 hours
• B. 4 hours
• C. 6 hours
• D. 8 hours

Answer: (B)

After reconstitution, the main concern is limiting bacterial growth. Refrigeration slows that growth, and the product should be kept cold as soon as possible. If the reconstituted formula is left at room temperature, it should not stay out for more than four hours to reduce the risk of microbial proliferation while still allowing for practical use in feeding schedules. Beyond that window, discard or refrigerate promptly. The 24-hour discard guideline applies to refrigerated storage; room-temperature exposure is limited to four hours.