静脉血和动脉血气电解质、血红蛋白浓度的相关性研究

doi:10.3969/j.issn.1006-7795.2020.02.021

摘要/Abstract

摘要： 目的研究静脉血和动脉血气中钠离子（sodium，Na⁺）、钾离子（potassium，K⁺）、钙离子（calcium，Ca²⁺）、血红蛋白（hemoglobin，HGB）浓度的差异。方法在急诊留观室同时采取静脉血常规标本、静脉血生物化学标本、动脉血气标本的患者中，采用数字表法随机选取60例患者的静脉血和动脉血气中Na⁺、K⁺、Ca²⁺、HGB的浓度值，并进行统计学分析。结果动脉血气和静脉血检测K⁺浓度平均值分别为（3.73±0.52）mmol/L、（3.93±0.58）mmol/L（P<0.001），两者差异性在临床允许的误差范围内，动脉血气结果可直接用于估计静脉K⁺浓度；动脉血气和静脉血的Na⁺浓度分别为（136.7±7.0）mmol/L、（136.49±6.6）mmol/L（P=0.6），两者差异无统计学意义，动脉血气结果可直接用于估计静脉血中Na⁺浓度；动脉血气和静脉血的Ca²⁺浓度分别为（1.12±0.22）mmol/L、（2.02±0.36）mmol/L（P<0.001），两者差异超过临床允许最大误差范围，相关性系数为0.88，相关性好，可通过线性方程计算，静脉血钙（mmol/L）=0.44+1.42×动脉血气钙浓度；动脉血气和静脉血的HGB浓度值分别为（101.3±26.6）g/L、（98.8±24.6）g/L（P=0.17），两者差异无统计学意义，动脉血气结果可直接用于估计静脉血中HGB浓度。结论在处理急症时，动脉血气中电解质浓度、血红蛋白浓度在实验室结果出来之前用于指导临床决策是可靠的。

关键词: 动脉血气, 静脉血, 电解质, 血红蛋白

Abstract: Objective To study the correlation in the concentrations of sodium(Na⁺),potassium(K⁺),calcium(Ca²⁺), and hemoglobin (HGB)between venous blood and arterial blood gas. Methods The venous blood samples and arterial blood gas samples of the emergency department observation patients were taken at the same time.Venous blood biochemistry panel and routine test were carried out. The concentrations of Na⁺, K⁺, Ca²⁺,HGB in venous blood and arterial blood gas of 60 patients were selected by the method of random number table for statistical analysis. Results The mean values of K⁺ concentrations in arterial blood gas and venous blood were (3.73±0.52)mmol/L and (3.93±0.58)mmol/L, respectively, with P<0.001.The difference is within the clinically permissible error range, and thus the arterial blood gas results were directly used to estimate the venous K⁺ concentration level.The measured Na⁺ concentration of arterial blood gas and venous blood were (136.7±7.0)mmol/L and (136.49±6.6)mmol/L,respectively, with P=0.6.There was no significant difference, and the results of arterial blood gas were directly used to estimate the Na⁺ concentration level in venous blood. The measured values of Ca²⁺ concentration in arterial blood gas and venous blood were (1.12±0.22)mmol/L and (2.02±0.36)mmol/L, with P<0.001. Difference between the two is beyond the maximum clinical error range, however, the correlation coefficient is 0.88, therefore, the venous Ca²⁺ concentration was calculated with linear equation,venous Ca²⁺ concentration (mmol/L)=0.44+1.42×arterial blood Ca²⁺ concentration.The HGB values of arterial blood gas and venous blood were (101.3±26.6)g/L and (98.8±24.6)g/L, respectively, with P=0.17. Difference between the two was not statistically significant, and the arterial blood gas results were directly used to estimate the HGB concentration level in venous blood.Conclusion In emergency management,the concentrations of electrolytes and hemoglobin concentrations in arterial blood gas are reliable for guiding clinical decisions until laboratory results are available.

Key words: arterial blood gas, venous blood, electrolytes, hemoglobin

中图分类号:

R446.11

梅曼, 任添华. 静脉血和动脉血气电解质、血红蛋白浓度的相关性研究[J]. 首都医科大学学报, 2020, 41(2): 267-271.

Mei Man, Ren Tianhua. Study on the correlation between venous blood and arterial blood gas electrolyte hemoglobin concentration[J]. Journal of Capital Medical University, 2020, 41(2): 267-271.

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