If 0.8 L of normal saline needs to be infused over 45 minutes, what is the hourly rate?

To determine the hourly rate for the infusion of 0.8 L (which is equivalent to 800 mL) over 45 minutes, you first need to convert the time from minutes to hours. Since there are 60 minutes in an hour, 45 minutes is equal to 0.75 hours (45 minutes ÷ 60 minutes/hour = 0.75 hours).

Next, to find the hourly rate, you divide the total volume to be infused (800 mL) by the time in hours (0.75 hours).

Using the formula for calculating the rate:

Hourly Rate = Total Volume / Time in hours

Hourly Rate = 800 mL / 0.75 hours

Hourly Rate = 1066.67 mL/hr

However, it is important to note that the answer provided options should be compared and understood in the context of how to round or interpret calculated infusion rates in real clinical practice. The closest calculation to traditional rounding practices would be to round to a reasonable and safe infusion rate.

Thus, the correct interpretation should lead to a rounded hourly rate of about 1067 mL/hr, which could lead to rounding practices to find the nearest option. When considering the choices provided, they may