Worked example

IV flow rate (mL/hr) - practice problem 12

An order reads: infuse 250 mL of D5 1/2 NS over 2 hours using an IV pump.

Volume250 mL
Time2 hr

What rate (mL/hr) should the pump be set to?

Answer: 125 mL/hr

Step-by-step solution

1. Divide the volume by the time in hours
250 mL ÷ 2 hr
= 125 mL/hr
2. Round to a whole mL/hr the pump can be set to
125 mL/hr ≈ 125 mL/hr
= 125 mL/hr

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