Examples · IV infusion time
Worked example
IV infusion time - practice problem 11
An IV pump is running 500 mL of D5W at 40 mL/hr.
How long will the infusion take (hours)?
Answer: 12.5 hr
Step-by-step solution
1. Divide the volume by the rate
500 mL ÷ ( 40 mL ÷ 1 hr )
2. Cancel mL and solve for hours
= 500 ÷ 40 hr
= 12.5 hr
3. Convert the decimal hours to hours and minutes
12.5 hr = 12 hr 30 min
= 12 hr 30 min
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