End
Maintenance IV Fluids
Calculates hourly IV maintenance fluid rates based on the “4-2-1” rule for pediatric and adult patients.
Patient Weight
Enter weight in kilograms (kg)
0
mL / hour
Maintenance Rate
24-Hour Total: 0 mL
| Weight Segment | Rate Calculation |
|---|---|
| First 10 kg | 4 mL / kg / hr |
| 10 – 20 kg | + 2 mL / kg / hr |
| Above 20 kg | + 1 mL / kg / hr |
!
Obesity: Consider using Ideal Body Weight in obese patients to avoid fluid overload.
!
Clinical Status: This formula calculates volume only. Electrolyte composition (e.g., NaCl/Dextrose) must be tailored to the patient’s metabolic needs.
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Contraindications: Be cautious in patients with renal failure, heart failure, or SIADH where restrictive fluid management may be required.
