中心实验室和卫星实验室中血气系统的性能评估

Performance evaluation of a blood gas system in a central and satellite laboratory.

作者信息

Menendez-Botet C J, Koller N E, La Monte C S, Schwartz M K

出版信息

Ann Clin Lab Sci. 1979 May-Jun;9(3):247-50.

Abstract

In many hospitals blood gases are performed in several laboratories. It is important to establish that values obtained in all laboratories are identical and that the same quality control program is used. Evaluation of the performance of blood gas apparatus has been made in two of our laboratories. Result reproducibility was assessed by means of gas analyzer system control. Measurements were made in duplicate of patients' specimens in the same instrument and duplicate measurements of patient samples with both instruments. A13 day evaluation using this system was carried out in both laboratories during all shifts and showed excellent agreement with the manufacturer's reported values. The combined standard deviation for pH at all levels was 0.009,pCO2 -0.83 mmHg and pO2 - 3.9 mmHg. Patients' samples analyzed in the same instrument showed an absolute average difference between duplicates for pH of 0.003, pCO2 - 0.62 mmHg and pO2 -0.87 mmHg. The comparison of duplicate samples in the two instruments in the different laboratories showed an absolute average difference for pH of 0.009,pCO2-1.7mmHg and pO2 - 1.6 mmHg.

摘要

在许多医院，血气分析在多个实验室进行。确保所有实验室获得的结果一致且采用相同的质量控制程序非常重要。我们的两个实验室对血气分析仪的性能进行了评估。通过气体分析仪系统控制来评估结果的可重复性。在同一台仪器上对患者样本进行了双份测量，并使用两台仪器对患者样本进行了重复测量。两个实验室在所有班次期间都使用该系统进行了为期13天的评估，结果与制造商报告的值高度一致。所有水平下pH值的合并标准差为0.009，pCO2为-0.83 mmHg，pO2为-3.9 mmHg。在同一台仪器上分析的患者样本，双份测量之间pH值的绝对平均差异为0.003，pCO2为-0.62 mmHg，pO2为-0.87 mmHg。不同实验室中两台仪器对重复样本的比较显示，pH值的绝对平均差异为0.009，pCO2为-1.7 mmHg，pO2为-1.6 mmHg。