Normal Maintenance Requirements

Weight Rate
For the fist 10 kg 4 mL/kg/h
For the next 10 kg Add 2 mL/kg/h
For each kg above 20kg Add 1 mL/Kg/h

20kg 이상일시 60 + (Weight-20) mL

Redistribution and Evaporative Surgical fluid loss

Degree of Tissue Trauma Additional Fluid Requirement
Minimal (eg, herniorrhaphy) 0-2 mL/kg
Modereate (eg, cholecystectomy) 2-4 mL/kg
Severe (eg, bowel resection) 4-8 mL/kg