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在心跳停止期间,常主张心内或静脉注射钙剂治疗心收缩不全,但对使用何种钙剂及其剂量和计量单位还有争论。有些作者使用氯化钙不用葡萄糖酸钙,因为后者不能电离,只有在肝内代谢后钙才能利用。为此作者采用一种对离子钙有选择敏感性的钙电极,来比较这两种钙剂在全血中的离子化情况。最近提出以毫克分子为单位对不同制剂的剂量更容易比较。抽正常人静脉血50毫升,装入含有0.1毫(?)升肝素的注射器中,混匀后每5毫升分成一份,每份分别加一种钙剂。用含4%CO_2的空气进行平衡,所
During the cessation of the heartbeat, often advocating intracardiac or intravenous calcium treatment of cardiac insufficiency, but on the use of calcium and dose and unit of measurement is still controversial. Some authors use calcium chloride instead of calcium gluconate because the latter can not ionize and calcium is available only after intrahepatic metabolism. For this reason, the authors used a calcium electrode with a selective sensitivity to ionized calcium to compare the ionization of the two calcium agents in whole blood. It has recently been proposed to compare doses of different formulations in milligram units more easily. 50 ml of normal human blood was drawn and filled into syringes containing 0.1 ml heparin. After mixing, aliquots of 5 ml each were given a calcium supplement. Equilibrate with 4% CO 2 in air