Final answer:
To make the ordered strength of the Glucerna solution, you need to add 126 mL of water to a 180 mL can of Glucerna 1.2 cal.
Step-by-step explanation:
To calculate the volume of water to add to make the ordered strength, we need to determine the amount of Glucerna needed and subtract that from the total volume. The order specifies Glucerna 1.2 cal 3 4 strength, which means we need 3/4 of the complete strength (1.2 cal) for each feeding pump.
To calculate the amount of Glucerna needed, we can use the following formula: Amount of Glucerna = Strength of Glucerna x Volume per feeding pump
Using the given information: Strength of Glucerna = 1.2 cal and Volume per feeding pump = 60 mL/hr
Therefore, the amount of Glucerna needed per feeding pump is 0.75 x 1.2 cal x 60 mL = 54 cal/mL
Now, we can calculate the volume of water to add using the formula: Volume of water = Total volume - Amount of Glucerna
Using the given information: Total volume = 180 mL
Therefore, the volume of water to add is 180 mL - 54 cal/mL = 126 mL.