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一概念 1、肾小管功能简单回顾肾脏的基本单位为肾单元(Nephron),起始于肾小球,终于集合管,肾小球对于血浆中分子量小的物质差不多完全可以滤过,进入原尿。健康人的肾小球滤过率(C-FR)约为120ml/min,如血清钠为140mmol/L,血糖为5mmol/L,则于24小时内肾小球滤出的水为172L(等于170kg),其中Na~+为24200mmol/d,糖为155500mg,这是原尿的情况,其它滤过物尚未论及。但人的终尿在24小时一般为1500ml左右,而且排出的Na~+仅为150mmol/d,终尿排出葡萄糖量<60mg/d,用普
A concept of a simple review of renal tubular function The basic unit of the kidney Nephron (Nephron), starting in the glomeruli, and finally set the tube, the glomerular for the plasma of small molecular weight substances almost completely filtered into the original urine . The glomerular filtration rate (C-FR) of healthy people is about 120ml / min. If the serum sodium is 140mmol / L and the blood sugar is 5mmol / L, the glomerular filtration water is 172L within 24 hours 170kg), of which Na ~ + is 24200mmol / d, sugar is 155,500mg, which is the case of the original urine, other filtration material has not been discussed. However, the final urine of people in the 24 hours is generally about 1500ml, and the discharge of Na ~ + only 150mmol / d, the final discharge of glucose in urine <60mg / d, with Pu