Examples · IV infusion time
Worked example
IV infusion time - practice problem 8
An IV pump is running 1000 mL of D5 1/2 NS at 80 mL/hr.
Volume1000 mL
Rate80 mL/hr
How long will the infusion take (hours)?
Answer: 12.5 hr
Step-by-step solution
1. Divide the volume by the rate
1000 mL ÷ ( 80 mL ÷ 1 hr )
2. Cancel mL and solve for hours
= 1000 ÷ 80 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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