Worked example

IV flow rate (mL/hr) — practice problem 14

An order reads: infuse 50 mL of lactated Ringer's over 1 hour using an IV pump.

Volume50 mL
Time1 hr

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

Answer: 50 mL/hr

Step-by-step solution

1. Divide the volume by the time in hours
50 mL ÷ 1 hr
= 50 mL/hr
2. Round to a whole mL/hr the pump can be set to
50 mL/hr ≈ 50 mL/hr
= 50 mL/hr

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