Flow Rate Calculations

Question

1)     What rate should the nurse set the pump to (mL/hr) to deliver 630 mL of NS intravenously over 4 hours?

Answer 1

To determine the flow rate, take the volume that needs to be infused (VTBI) and divide it by the time you have to infuse it. In this case, the VTBI is 630ml and the time is 4 hours.

630 divided by 4 is 157.5.

Answer 2

Step 1: Calculate the infusion rate per hour.

Write out your equation Infusion rate per hour = Total volume to be infused / Time in hours

Then place in the corresponding values Infusion rate per hour = 630 mL / 4 hours >Infusion rate per hour = 157.5 mL/hr

Step 2: Find the rate to set the pump in mL/hr. The pump to deliver the NS at a rate of 157.5 mL/hr. SO, to deliver 630 mL of NS intravenously over 4 hours, the nurse should set the pump to a rate of 157.5 mL/hr.

Answer 3

To determine the infusion rate in mL/hr, we need to divide the total volume (630 mL) by the total time (4 hours).

Infusion Rate (mL/hr) = Total Volume (mL) / Total Time (hours)

In this case, the total volume is 630 mL, and the total time is 4 hours.

Infusion Rate (mL/hr) = 630 mL / 4 hours

Dividing 630 mL by 4 hours gives us an infusion rate of 157.5 mL/hr.

Therefore, the nurse should set the pump to deliver the intravenous solution at a rate of 157.5 mL/hr to ensure that 630 mL of normal saline (NS) is infused over a 4-hour period. Can be rounded up to 158 mL/hr.