Water and electrolyte disorders
Water and electrolyte disorders
水、电解质代谢的生理基础 ()体液 1.体液及其分布 Intracellular fluid Total (ICF)40% (60%) interstitial fluid 15% extracellular fluid plasma 5% (ECF)20% transcellular fluid 2%o (透细胞液)
一、水、电解质代谢的生理基础 (一) 体液 1. 体液及其分布 Intracellular fluid Total (ICF) 40% (60%) interstitial fluid 15% extracellular fluid plasma 5% (ECF) 20% transcellular fluid 2% (透细胞液)
2.体液中主要电解质及其分布 extracellular fluid: Na+、CI、HCO3 intracellular fluid K+、HPO42 在Na+-K+- ATPase作用下,细胞内外Na+ K+保持不对等分布
2. 体液中主要电解质及其分布 extracellular fluid: Na+ 、Cl-、HCO3 - intracellular fluid： K+ 、HPO4 2- 在Na+- K+-ATPase作用下，细胞内外Na+ 、 K+保持不对等分布
3. Osmotic pressure of body fluid (plasma) Positive ion: 151mmolL Negative ion: 139 mmol/L total 280-310mmol/L Nonelectrolyte: 10mmol/L (678.3kpa) Plasma colloidal osmotic pressure 3.72 kpa(28 mmHg)
3. Osmotic pressure of body fluid (plasma) Positive ion: 151mmol/L Negative ion: 139mmol/L total 280-310mmol/L Nonelectrolyte: 10mmol/L (678.3kpa) Plasma colloidal osmotic pressure: 3.72kpa(28mmHg)
(= movement of water and electrolytes 1. plasma interstitial fluid capillary protei In RBC 2. intra- and extra- cellular fluid proteins and positive ion: permeability water and negative ion permea bilit ity (water movement- balance of osmotic pressure)
（二） movement of water and electrolytes 1. plasma interstitial fluid capillary protein 2. intra- and extra- cellular fluid proteins and positive ion: permeability water and negative ion: permeability (water movement balance of osmotic pressure) R B C