50~55mmol/Kg×BW K+ K+ 3.5-5.5 mmol/L 140~160mmo/L ECF ICF 14 Potassium content and distribution140~160mmol/L 3.5~ 5.5 mmol/L ECF ICF K+ K+ Potassium content and distribution 1.4% 90% 50~55mmol/Kg×BW