3. Balance of body water and sodium drink 1200ml water intake food 1000ml (2000-2500ml) oxidation 300ml balance of water urine 1200-1500ml water loss skin 500ml (2000-2500ml respiration 350ml feces 150ml Balance Intake/d 100-200mmol (digestive tract) of sodium Loss/d 100-200mmol (urinary system) ECF: 50% Distribution ICF: 10% of sodium骨基质:40%(正常血清钠:130-150mmo)3. Balance of body water and sodium drink 1200ml water intake food 1000ml (2000-2500ml) oxidation 300ml balance of water urine 1200-1500ml water loss skin 500ml (2000-2500ml) respiration 350ml feces 150ml Balance Intake/d 100-200mmol (digestive tract) of sodium Loss/d 100-200mmol (urinary system) ECF:50% Distribution ICF: 10% of sodium 骨基质:40% (正常血清钠:130-150mmol)