The physician reduced an IV to 30 mL/h. The IV bag has 270 mL remaining. If the current time is 10:30 AM, at what time will the infusion be completed?

The physician reduced an IV to 30 mL/h. The IV bag has 270 mL remaining. If the current time is 10:30 AM, at what time will the infusion be completed?

• A. 19:30 or 7:30 PM
• B. 18:00 or 6:00 PM
• C. 19:00 or 7:00 PM
• D. 20:30 or 8:30 PM

Answer: (A)

The main idea is to find how long the infusion will take at the current rate, then add that time to the present clock time. If the IV is flowing at 30 mL per hour and there are 270 mL left, the time to finish is 270 divided by 30, which equals 9 hours. Starting from 10:30 AM and adding 9 hours brings you to 7:30 PM, which is 19:30 in 24-hour time. So the infusion will complete at 19:30 or 7:30 PM, matching the given options.

The main idea is to find how long the infusion will take at the current rate, then add that time to the present clock time. If the IV is flowing at 30 mL per hour and there are 270 mL left, the time to finish is 270 divided by 30, which equals 9 hours. Starting from 10:30 AM and adding 9 hours brings you to 7:30 PM, which is 19:30 in 24-hour time. So the infusion will complete at 19:30 or 7:30 PM, matching the given options.