If 250ml of LR is to be infused over 10 hours, what is the flow rate in milliliters per hour?

To determine the flow rate in milliliters per hour for a volume of 250 mL of Lactated Ringer’s solution to be infused over a period of 10 hours, you need to use the formula for flow rate, which is the total volume divided by the total time.

Here’s how to calculate it:

1. Total volume: 250 mL

2. Total time: 10 hours

Using the flow rate formula:

[ \text{Flow Rate} = \frac{\text{Total Volume}}{\text{Total Time}} ]

Substituting in the values:

[ \text{Flow Rate} = \frac{250 , \text{mL}}{10 , \text{hours}} ]

When you perform the division:

[ \text{Flow Rate} = 25 , \text{mL/hour} ]

This means that to infuse 250 mL over a span of 10 hours, the infusion should be set to deliver 25 mL each hour. This calculation confirms that the correct answer reflects the appropriate flow rate needed for the infusion.