Examples · IV infusion time
Worked example
IV infusion time — practice problem 7
An IV pump is running 250 mL of D5W at 40 mL/hr.
How long will the infusion take (hours)?
Answer: 6.25 hr
Step-by-step solution
1. Divide the volume by the rate
250 mL ÷ ( 40 mL ÷ 1 hr )
2. Cancel mL and solve for hours
= 250 ÷ 40 hr
= 6.25 hr
3. Convert the decimal hours to hours and minutes
6.25 hr = 6 hr 15 min
= 6 hr 15 min
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