储存容器对血液乙醇浓度的影响

[目的]了解不同储存容器对血液乙醇浓度的影响,为司法判定酒后或醉酒驾车提供科学证据。[方法]抽取2011年1月因交通事故死亡的成年男性驾驶员心腔血每人3份,分别储存于真空抗凝管、真空普通管和普通采血管。立即测量各管中血液乙醇浓度,选取其中血液乙醇浓度大于20mg/100mL的血样作为研究样本（共20份）。[结果]不同储存容器中血液乙醇浓度差异有统计学意义（P〈0.01）,浓度大小为真空抗凝管〈真空普通管〈普通采血管（P〈0.01）。[结论]3种储存容器以真空抗凝管对血液乙醇浓度影响最小。涉嫌酒后驾驶人员的待检血样,应储存于真空抗凝管中,有利于保证结果的客观、公正、准确。

Influence of Storage Containers on Blood Alcohol Concentrations

[ Objective ] To study the influence of storage containers on blood alcohol content （BAC） so as to provide scientific evidence for judgments on driving under the influence （DUI） or driving while intoxicated （DWI）. [ Methods ] A purposive sampling method was adopted to collect 3 copies of cardiac chamber blood which were then stored in anticoagulant vacuum tubes, ordinary vacuum tubes and common blood collection tubes, respectively, from the drivers who died in traffic accidents in January, 2011. BACs were tested immediately and 20 drivers＇ blood samples whose BACs were greater than 20 mg/100 mL were chosen as study samples. [ Results ] The BACs in three kinds of storage containers were significantly different （P 〈 0.01）, i.e. anticoagulant vacuum tube 〈 ordinary vacuum tube 〈 common blood collection tube （P 〈 0.01）. [ Conclusion ] Anticoagulant vacuum tubes affect BACs least in all the three storage containers studied, and therefore, should be chosen as storage containers for blood samples to ensure fair and just judgments on DUI or DWI.