At 125 mL/h, how long to infuse 800 mL?

At 125 mL/h, how long to infuse 800 mL?

• A. 6 h 24 m
• B. 5 h 20 m
• C. 7 h 8 m
• D. 6 h 0 m

Answer: (A)

The time needed to infuse equals the volume divided by the flow rate. If you have 800 mL to infuse at 125 mL per hour, the time is 800 / 125 = 6.4 hours. Convert 0.4 hours to minutes: 0.4 × 60 = 24 minutes. So the infusion takes 6 hours and 24 minutes. As a quick check, 6 hours at 125 mL/h yields 750 mL; 7 hours yields 875 mL, so 6 h 24 m ensures exactly 800 mL infused.

The time needed to infuse equals the volume divided by the flow rate. If you have 800 mL to infuse at 125 mL per hour, the time is 800 / 125 = 6.4 hours. Convert 0.4 hours to minutes: 0.4 × 60 = 24 minutes. So the infusion takes 6 hours and 24 minutes.

As a quick check, 6 hours at 125 mL/h yields 750 mL; 7 hours yields 875 mL, so 6 h 24 m ensures exactly 800 mL infused.