大耳白兔动脉血和脑脊液酸碱电解质值及其相互关系

Acid-base and Electrolytes Values and Relati on Between CSF and Arterial Blood in Normal Big Ear Rabbits

30只正常大耳白兔 ,经股动脉穿刺插管和枕骨下经皮穿刺入枕骨下池 ,在严格隔绝空气的情况下 ,分别取得动脉血和脑脊液 (CSF)标本 ,用ABL3型血气分析仪及CN6 44型生化分析仪检测主要酸碱变量及电解质值。经统计学处理结果表明 :CSFpH及K+ 、Ca2 + 、Mg2 + 浓度 <动脉血 ,CSFPCO2 及HCO- 3、Cl- 、Na+ 、H+ >动脉血。另外 ,CSFpH与 pHa、CSFPCO2 与PaCO2 、CSF[K+ ]与 [K+ ]a及CSF[Cl- ]、[Cl- ]a均显著正相关。说明CSF主要酸碱变量及离子值均不同于动脉血 ,CSF绝不是血浆的滤过液。

Arterial blood and ceve brospinal fluid (CSF) samples from 30 normal big ear rabbits were analyzed. Results as follows:pH,K +,Ca 2+ ,Mg 2+ in CSF were lower than those in the arterial blood; PCO 2,HCO - 3,Cl -,Na +,H + CSF were higher than in those the arterial blood too. There were significant correlation between CSFpH and pHa, between CSFPCO 2 and PaCO 2, between CSF[K +] and [K +]a, between CSF[Cl -] and [Cl -]a. According to our study, there are differences in acid base variables and electrolytes are between CSF and anterial blood and CSF is not Filtrates of the plasma.