The amount of intravenous (IV) fluid per hour depends on the patient's weight. Here's a breakdown based on weight, according to the reference:
IV Fluid Maintenance Rate by Weight
The following table outlines the maintenance IV fluid rate per hour based on weight:
| Weight (kg) | Full maintenance mL/day | mL/hour |
|---|---|---|
| 3–10 | 100 x weight | 4 x weight |
| 10–20 | 1000 plus 50 x (weight minus 10) | 40 plus 2 x (weight minus 10) |
| 20–60 | 1500 plus 20 x (weight minus 20) | 60 plus 1 x (weight minus 20) |
| >60 | 2400 mL/day is the normal maximum amount | 100 mL/hour |
Examples of IV Fluid Calculation:
- Example 1: A child weighing 8 kg requires:
- mL/hour = 4 x 8 = 32 mL/hour
- Example 2: A child weighing 15 kg requires:
- mL/hour = 40 + 2 x (15 - 10) = 40 + 2 x 5 = 40 + 10 = 50 mL/hour
- Example 3: A child weighing 30 kg requires:
- mL/hour = 60 + 1 x (30 - 20) = 60 + 1 x 10 = 70 mL/hour
- Example 4: An individual weighing 70 kg requires:
- mL/hour = 100 mL/hour (maximum rate)
