1320 ml of TPN is infusing at a rate of 120 ml/hour. how many hrs will it take for the TPN to infuse?

Here is the formula:

infusion time (hr) = total volume (mL) ÷ flow rate (mL/hr)

1320ml divided by 120ml/hour = 11 hours

Step-by-step explanation

Whenever you're administering intravenous (IV) infusions, or TPN you always need to know the flow rate, infusion time, and total volume.