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以同期住院病人作对照，研究危重病人的血清电解质和血气分析结果。危重组低钠血症的发生率（135／265，50．9％）明显高于对照组（57／254，22．4％，P＜0．05）；不同类型酸碱失衡的发生率，危重组（106／113，93．8％）亦明显高于对照组（23／32，71．9％，P＜0．05）。危重组患者若并发严重的低钠血症（血钠≤125mmol／L），则病死率较高（26／34，76．5％）。提示重视危重病患者低钠血症和酸碱紊乱的预防和纠正具有重要的临床意义。
In the same period inpatients as a control, the study of critically ill patients serum electrolytes and blood gas analysis results. The incidence of hyponatremia in critically ill group (135 / 265,50.9%) was significantly higher than that in control group (57 / 254,22.4%, P <0.05). The incidence of different types of acid-base imbalance, The critically ill patients (106/113, 93.8%) were also significantly higher than those in the control group (23/32, 71.9%, P <0.05). In critically ill patients with severe hyponatremia (serum sodium ≤ 125mmol / L), the case fatality rate was higher (26/34, 76.5%). Prompted attention to critically ill patients with hyponatremia and acid-base disorders prevention and correction of important clinical significance.