检验医学 ›› 2017, Vol. 32 ›› Issue (2): 94-98.DOI: 10.3969/j.issn.1673-8640.2017.02.006

• 临床应用研究·论著 • 上一篇    下一篇

真空采血管采血量对常用临床生化检验项目结果的影响

汪怀周1, 方雯2, 陈明坤1, 刘善荣1   

  1. 1. 第二军医大学附属长海医院实验诊断科,上海 200433
    2. 江苏大学附属医院体检中心,江苏 镇江 212001
  • 收稿日期:2016-08-10 出版日期:2017-03-30 发布日期:2017-03-30
  • 作者简介:null

    作者简介:汪怀周,男,1978年生,硕士,主管技师,主要从事临床检验工作。

    通信作者:刘善荣,联系电话:021-31162061。

Influence of evacuated blood collection tube fill volume on biochemical analysis

WANG Huaizhou1, FANG Wen2, CHEN Mingkun1, LIU Shanrong1   

  1. 1. Department of Laboratory Diagnosis,Changhai Hospital,the Second Military Medical University,Shanghai 200433,China
    2. Physical Examination Center,the Affiliated Hospital of Jiangsu University,Zhenjiang 212001,Jiangsu,China
  • Received:2016-08-10 Online:2017-03-30 Published:2017-03-30

摘要:

目的 研究采样量不达真空度要求的标本在进行19项生化项目检测时结果的可靠性。方法 使用BD Vacutainer玻璃管和BD Vacutainer SST Ⅱ分离胶管分别采集23位健康志愿者的血液标本,采血量达真空度要求为完全充满(5 mL),未达真空度要求为部分充满(2 mL),在采集2 h内离心获得血清用于检测丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)、γ-谷氨酰基转移酶(GGT)、淀粉酶(AMY)、总胆红素(TB)、钙离子(Ca2+)、钾离子(K+)、肌酸激酶(CK)、肌酐(Cr)、葡萄糖(Glu)、乳酸脱氢酶(LDH)、白蛋白(Alb)、总蛋白(TP)、尿素氮(BUN)、尿酸(UA)、无机磷(P)、总胆固醇(TC)、甘油三酯(TG)。以《临床生物化学检测常规项目分析质量指标》(WS/T403-2012)中允许总误差(TEa)的1/2评价采血量部分充满对检测结果的影响。结果 使用玻璃管时,2种采样量之间ALT、ALP、AST、TB、CK、Cr和LDH的检测值差异有统计学意义(P<0.01);使用分离胶管时,2种采样量之间ALT、AST、TB、CK、Cr、Glu和LDH的检测值差异有统计学意义(P<0.01)。当以1/2TEa作为可接受的偏移时,只有LDH的检测结果偏移超出了范围。完全充满和部分充满的玻璃管LDH水平分别为(143.09±22.50)和(156.00±24.90) U/L,部分充满玻璃管LDH水平平均升高9.12%;完全充满和部分充满的分离胶管LDH水平分别为(153.74±25.94)和(173.22±26.58) U/L,部分充满分离胶管LDH平均升高13.05%,均大于允许的偏移(±5.5%)。结论 应用真空采血管前应对其适用的采血量进行评估。采血量较少(≤2 mL)的玻璃管或分离胶管标本不适合做LDH检测。

关键词: 采血管, 采血量, 生化检验, 分析前误差

Abstract:

Objective To evaluate the reliability of the results of 19 biochemical items in evacuated blood collection tube fill volume without related requirements.Methods Blood samples of 23 healthy subjects were collected in BD Vacutainer glass tubes and plastic BD Vacutainer SST Ⅱ separator gel tubes. The fill volume with related requirements was 5 mL,and the fill volume without related requirements was 2 mL. All collected samples were centrifuged and processed within 2 h. Alanine aminotransferase(ALT),aspartate aminotransferase(AST),alkaline phosphatase(ALP),gamma-glutamyltransferase(GGT),amylase(AMY),total bilirubin(TB),calcium ion(Ca2+),potassium ion(K+),creatine kinase(CK),creatinine(Cr),glucose(Glu),lactate dehydrogenase(LDH),albumin(Alb),total protein(TP),blood urea nitrogen(BUN),uric acid(UA),phosphorus(P),total cholesterol(TC) and triglyceride(TG) were determined. The influence of fill volume without related requirements was evaluated according to 1/2 allowable total error(TEa) in WS/T403-2012.Results For glass tubes,there was statistical significance for ALT,ALP,AST,TB,CK,Cr and LDH between the 2 fill volumes(P<0.01). For separator gel tubes,there was statistical significance for ALT,AST,TB,CK,Cr,Glu and LDH(P<0.01). Compared with acceptable bias(1/2 TEa),bias was found only for LDH. For glass tubes,LDH levels of volumes with and without related requirements were (143.09±22.50) U/L and (156.00±24.90) U/L by 9.12% increasing. For separator gel tubes,LDH levels were (153.74±25.94) U/L and (173.22±26.58) U/L by 13.05% increasing. Both of the biases were >allowable bias(±5.5%). Conclusions Evacuated blood collection tubes should be assessed before determinations. The fill volume without related requirements(≤2 mL)might be unsuitable for determining LDH.

Key words: Blood collection tube, Blood fill volume, Biochemical determination, Preanalytical error

中图分类号: