Cold Liquids Fed to Preterm Infants: Efficacy and Safety After 10 Minutes of Exposure

Cold Liquid is defined as being between 4-9 °C. One liter bottles of Poland Spring Natural Spring Water will be kept in the radiology suite to remain at room temperature. As described by Fink and colleagues,(42) the bottled water will be used to mix the barium powder to create a thin liquid consistency, with 50% dilution, which is found to be most similar to human milk and infant formula. After the barium is prepared, 2oz will be poured into a bottle and placed in a refrigerator set to 36°F; this will allow the barium to cool to approximately 4-9°C. Before oral administration, the barium mixture will be measured with a thermometer (TP3001 Digital Thermometer from Red Lantern®) to document the exact temperature.