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Subtracts measured output and insensible losses from total intake to give the net fluid balance over the charting period.
Fluid balance
Net balance = intake - measured output - insensible losses; insensible losses are roughly 0.5 mL/kg/h and rise with fever
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Evaporation from skin and the respiratory tract, typically 500 to 800 mL a day in an adult and more with fever.
Yes. One litre of fluid is about one kilogram, so daily weights are a useful cross-check on the chart.