Time (hr) = Volume (mL) ÷ Rate (mL/hr)
Divide the volume by the pump rate to get decimal hours, then multiply the fractional hour by 60 to express it as minutes for charting.
What each part means
| Volume | Volume remaining to infuse (mL) |
|---|---|
| Rate | Pump rate (mL/hr) |
Worked example
1000 mL at 80 mL/hr: 1000 ÷ 80 = 12.5 hr = 12 hr 30 min.