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目的探讨血常规检验中末梢血与静脉血的差异性。方法选取2015年10月至2016年10月于沈阳医学院附属第二医院进行血常规检验的144例健康体检者及门诊患者作为研究对象,按照随机数字表法将其分为研究组(静脉血)与对照组(末梢血),各72例。比较两组受试者血常规指标检测结果、红细胞状况及静脉血不同时间点血常规检测结果。结果研究组受试者白细胞计数(WBC)、血红蛋白(Hb)水平明显低于对照组,红细胞(RBC)及血小板(PLT)水平显著高于对照组,差异均有统计学意义(均P<0.05);两组受试者平均红细胞体积(MCV)、红细胞平均血红蛋白浓度(MCHC)水平均明显低于对照组,差异均有统计学意义(均P<0.05);研究组即刻检测与6 h检测比较,受试者WBC、MXD、PLT水平比较,差异均有统计学意义(均P<0.05);研究组即刻检测与3 h检测比较,各指标均有所变化,但差异均无统计学意义(均P>0.05)。结论在血常规检验过程中,采用静脉血进行检测的效果优于末梢血,能提升检测准确性,且支持反复检测;但静脉血需在采集完3 h内检测,以减少误差。
Objective To investigate the differences of peripheral blood and venous blood in blood tests. Methods From October 2015 to October 2016, 144 healthy subjects and outpatients who underwent routine blood tests in the Second Affiliated Hospital of Shenyang Medical College were selected as research subjects and divided into study groups (venous blood ) And control group (peripheral blood), each 72 cases. The blood test results, erythrocyte status and blood routine test results of venous blood at different time points were compared between the two groups. Results The levels of white blood cell count (WBC) and hemoglobin (Hb) in the study group were significantly lower than those in the control group, and the levels of erythrocyte (RBC) and platelet (PLT) were significantly higher than those in the control group ). The mean erythrocyte volume (MCV) and the average hemoglobin concentration (MCHC) of the two groups were significantly lower than those of the control group (all P <0.05) (P <0.05). Compared with the 3-h test, there was no significant difference in all the indexes between the study group and the 3-hour test (All P> 0.05). Conclusion In routine blood tests, the effect of using venous blood is better than that of peripheral blood, which can improve the accuracy of detection and support repeated testing. However, venous blood should be detected within 3 h after sampling to reduce the error.