Fluid Management for a 5-Year-Old with 30% Burns Using the Parkland Formula
The initial fluid resuscitation for a 5-year-old male weighing 20 kg with 30% burns should be calculated using the Parkland formula (4 mL/kg/%TBSA) plus maintenance fluids, resulting in a total of 2,400 mL for burn resuscitation plus 1,500 mL maintenance fluids (3,900 mL total) for the first 24 hours, with half given in the first 8 hours. 1, 2
Calculation Breakdown
Burn Resuscitation Fluid (Parkland Formula):
- Formula: 4 mL × kg × %TBSA
- Calculation: 4 mL × 20 kg × 30% = 2,400 mL for 24 hours
Maintenance Fluids (Holliday-Segar/4-2-1 Rule):
- First 10 kg: 4 mL/kg/hr × 10 kg = 40 mL/hr
- Second 10 kg: 2 mL/kg/hr × 10 kg = 20 mL/hr
- Total: 60 mL/hr × 24 hrs = 1,440 mL (rounded to 1,500 mL)
Total 24-hour fluid requirement: 2,400 mL + 1,500 mL = 3,900 mL
Administration schedule:
- First 8 hours: 1,950 mL (half of total)
- Remaining 16 hours: 1,950 mL (half of total)
Important Clinical Considerations
Fluid Type
- Use balanced crystalloids such as Lactated Ringer's solution as the primary resuscitation fluid 2
- Initial bolus of 20 mL/kg balanced crystalloid should be administered in the first hour 2
Monitoring and Adjustments
- Adjust fluid rates based on clinical response rather than rigidly adhering to formula calculations 1, 2
- Target urine output of 1-2 mL/kg/hour in children 2
- Monitor for:
- Hourly urine output (primary parameter)
- Vital signs (heart rate, blood pressure)
- Capillary refill
- Mental status
- Arterial lactate levels if available
Common Pitfalls to Avoid
Formula Limitations: The Parkland formula provides only an initial estimate and should be adjusted based on clinical response 1, 3. Research shows that actual volumes often differ significantly from calculated volumes 4.
Fluid Creep: Avoid excessive fluid administration which can lead to complications including pulmonary edema, abdominal compartment syndrome, and increased morbidity 1, 2.
Under-resuscitation: Insufficient fluid can lead to hypovolemic shock and organ dysfunction. Children require proportionally more fluid than adults due to higher body surface area/weight ratio 2.
Calculation Errors: Double-check calculations to prevent potentially dangerous dosing errors. Consider using a nomogram for accuracy if available 5.
Special Considerations for This Patient
- At 30% TBSA burn, this child is at high risk for significant fluid shifts and requires careful monitoring
- Consider albumin administration after the first 6 hours for burns >30% TBSA 1
- Establish IV access in unburned areas when possible 2
- Monitor for intra-abdominal hypertension which may require intervention 2
Adjustment Protocol
- If urine output <1 mL/kg/hr: Increase fluid rate by 10-20%
- If urine output >2 mL/kg/hr: Decrease fluid rate by 10-20%
- Reassess hourly and adjust as needed
- Consider additional monitoring (arterial lactate, echocardiography) if clinical response is inadequate despite fluid adjustments 1, 2
Remember that the Parkland formula is only a starting point for resuscitation. Clinical parameters, especially urine output, should guide ongoing fluid management to optimize outcomes and minimize complications.