Paediatric fluid management

Fluid requirements = Maintenance + Ongoing Losses + Deficit

Maintenance requirements

=  3% dextrose and 1/3 N saline + 20 mmol/L KCL

e.g. 

8kg infant 8kg  x 4ml/kg/hr = 32ml/hr
Total = 32ml/hr
16kg child First 10kg x 4ml/kg/hr = 40ml/hr
Next 6kg x 2ml/kg/hr = 12ml/hr
Total = 52ml/hr
22kg child First 10kg 4ml/kg/hr = 40ml/hr
Next 10kg x 2ml/kg/hr = 20ml/hr
Next 2kg x 1ml/kg/hr=  = 2ml/hr
Total = 62ml/hr

Ongoing losses

= 1/2 NS + 10mmol/L KCl

Deficit

 

NB if significant electrolyte derangement then consult senior for modifications to fluid management