Examples · IV infusion time
Worked example
IV infusion time — practice problem 12
An IV pump is running 500 mL of D5 1/2 NS at 75 mL/hr.
How long will the infusion take (hours)?
Answer: 6.67 hr
Step-by-step solution
1. Divide the volume by the rate
500 mL ÷ ( 75 mL ÷ 1 hr )
2. Cancel mL and solve for hours
= 500 ÷ 75 hr
= 6.67 hr
3. Convert the decimal hours to hours and minutes
6.67 hr = 6 hr 40 min
= 6 hr 40 min
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