共查询到20条相似文献,搜索用时 62 毫秒
1.
采取脐动脉血观察新生儿血气酸碱变化情况,方法简便,便于临床对危重新生儿的抢救.我们对81例新生儿作了脐动脉血血气酸碱分析(其中顺产46例作正常组,产程过长或难产35例作异常组),其产妇同时作静脉血血气分析,结果报告如下. 相似文献
2.
3.
4.
5.
血气酸碱分析微机专家诊断系统的建立 总被引:1,自引:0,他引:1
谢长征 《现代检验医学杂志》1994,9(3):160-162
血气酸碱分析是一项重要的检测手段,广泛应用于呼吸科、外科、内分泌科、泌尿内科等临床科室;对于危重病人的抢救和指导治疗,尤其显示出极重要的意义。血气酸碱分析是一门高技术的检验项目,目前全自动血气分析仪逐渐普及,检测过程已十分简单。一般从标本的输入到打印或显示出各项检测结果.大约只需要几分钟。但是由于人体内的血液气体酸碱变化极为复杂,如果没有扎实的理论基础和丰富的临床经验,在较短的时间内,正确地分析一份血气酸状结果,及时满足临床需要,并非易事。有鉴于此,作者五年突潜心研究各种血气酸碱失衡的机理,结合… 相似文献
6.
血气酸碱分析应用的误区广东省顺德市第一人民医院伍朝纪,石循芳很少有象血气酸碱分析这样的事,看起来简单又客观,而实际工作中分歧却如此之大。仔细思考,在貌似简单的背后,其实存在许多误区,或者说存在被认为理所当然而实际上值得探讨的问题。它的复杂是客观的,简... 相似文献
7.
8.
酸碱血气分析对于临床的诊断、治疗、预后起到越来越重要的作用,但在酸碱血气的质控方面却做得很少,往往由于仪器的准确性不够产生系统偏差,对临床的诊断治疗都带来不可估计的损失,因而酸碱血气质控是极其重要的。但是由于国内尚无质控产品供应,给质控工作的开展带来很大的困难.在现有条件 相似文献
9.
周永列 《现代检验医学杂志》1996,11(2):36-38
血气酸碱分析是当今临床急救医学中不可缺少的检验之一,对临床的诊断和治疗、危重病人的抢救和监护,都具有重要的指导作用。放血气分析结果的准确性对临床准确的判断和治疗显得举足轻重。上要获得准确的酸碱血气测定数据,除了要有高精密度的血气分析仪,并用各类质控液或Astrup平衡法对仪器进行质控和严格的操作规程外,对标本的采集、送检与保存,即标本自身的质量等亦是一个不可忽视的重要环节。临床上由于血液标本采集与保存不当而造成的人为误差的情况并不罕见。我们从多年的实际工作中深刻体会到只有对血液标本自身的质量控制与仪… 相似文献
10.
11.
正常中孕胎儿大脑中动脉血流参数的正常值范围 总被引:1,自引:0,他引:1
目的:确定正常中孕胎儿大脑中动脉血流参数的正常值范围。方法:应用彩色多普勒能量图及脉冲多普勒技术对215例16~31孕周正常胎儿大脑中动脉血流参数进行检测。结果:正常胎儿大脑中动脉的最大流速及平均流速随孕周的增加而加快。阻力指数在孕16~24周时随孕周的增加而升高,孕24~31周时保持高水平。最大流速、平均流速及阻力指数与推算出的胎儿体重呈正相关。结论:本研究为多普勒超声早期预测胎儿高动力循环状态提供了理论依据。 相似文献
12.
13.
14.
新生儿疾病筛查中足跟血采集方法的观察和分析 总被引:1,自引:0,他引:1
目的通过改进足跟血的采集方法,提高新生儿疾病筛查足跟血采集的成功率,减少采血给新生儿带来的痛苦。方法将447例新生儿按病例单双号分为观察组和对照组。观察组采用改良方法采集血样,对照组采用传统方法采集血样。比较两组新生儿采血难易度、采集时间、采集血样本的质量及新生儿采血部位淤血情况。结果观察组新生儿采血容易,与对照组新生儿相比差异有统计学意义(U=4.448,P0.01);观察组新生儿血液采集时间短于对照组(U=5.975,P0.01);观察组新生儿采集的血样本质量高于对照组(χ2=11.23,P0.01);观察组新生儿采血部位淤血少于对照组(χ2=9.14,P0.01)。结论观察组新生儿采血容易、速度快、质量好,能有效减轻新生儿采血时的痛苦。 相似文献
15.
16.
目的 确定动脉血样采集后得到准确可靠血气分析检测结果 的标本放置时限.方法 选择择期行口腔颌面外科手术患者40例,全麻诱导后气管插管,进行机械通气后30min,采集桡动脉血液,进行血气分析,红细胞压积、血红蛋白、血糖、乳酸、电解质测定.检测时点分别为采血后即刻(T0)、采血后15min(T1)、采血后30min(T2)、采血后45min(T3)、采血后60min(T4)、采血后90min(T5)、采血后120min(T6)、采血后180min(T7)和采血后240min (T8).结果 从T4开始pH和PaO2比T0明显降低,PaCO2明显增高,P<0.05.HCO3-、TCO2和BE在T7和T8时刻显著降低.SaO2在各时点无明显变化.从T4开始红细胞压积、血红蛋白和乳酸比T0明显增高,P<0.05.从T4开始血糖比T0明显降低,P<0.05.Na+浓度略降低,K+浓度略增高,但均无统计学意义,P>0.05.Ca2+浓度在各时点无明显差异.结论 动脉血采集常温放置45min后血气分析结果 仍然准确可靠,具有临床指导意义. 相似文献
17.
Reference Ranges for the Clinical Laboratory Derived from a Rural Population in Kericho, Kenya 下载免费PDF全文
Rukia S. Kibaya Christian T. Bautista Frederick K. Sawe Douglas N. Shaffer Warren B. Sateren Paul T. Scott Nelson L. Michael Merlin L. Robb Deborah L. Birx Mark S. de Souza 《PLoS Clinical Trials》2008,3(10)
The conduct of Phase I/II HIV vaccine trials internationally necessitates the development of region-specific clinical reference ranges for trial enrolment and participant monitoring. A population based cohort of adults in Kericho, Kenya, a potential vaccine trial site, allowed development of clinical laboratory reference ranges. Lymphocyte immunophenotyping was performed on 1293 HIV seronegative study participants. Hematology and clinical chemistry were performed on up to 1541 cohort enrollees. The ratio of males to females was 1.91. Means, medians and 95% reference ranges were calculated and compared with those from other nations. The median CD4+ T cell count for the group was 810 cells/µl. There were significant gender differences for both red and white blood cell parameters. Kenyan subjects had lower median hemoglobin concentrations (9.5 g/dL; range 6.7–11.1) and neutrophil counts (1850 cells/µl; range 914–4715) compared to North Americans. Kenyan clinical chemistry reference ranges were comparable to those from the USA, with the exception of the upper limits for bilirubin and blood urea nitrogen, which were 2.3-fold higher and 1.5-fold lower, respectively. This study is the first to assess clinical reference ranges for a highland community in Kenya and highlights the need to define clinical laboratory ranges from the national community not only for clinical research but also care and treatment. 相似文献
18.
血常规检查既往多采用毛细血管取血 ,在儿科 ,我们发现毛细血管采血存在以下弊端 :(1)其化验结果往往由于组织液的混入而出现偏差 ;(2 )足跟采血引起的疼痛较静脉采血剧烈 ,对新生儿日后的生长发育产生不利影响 ,对于次数不多的采血 ,采用静脉血为好[1] 。然而 ,婴幼儿外周浅静脉压力低 ,抽血时往往由于血流不畅而致取血失败。而深静脉采血在不明确凝血功能的情况下取血有形成血肿的危险。婴幼儿头皮动脉位于皮下组织内 ,位置表浅 ,容易触到搏动 ,肉眼可见 ,不需暴露病人躯体 ,穿刺及局部按压均简单易行[2 ] 。而且动脉血压较静脉血压高 ,抽… 相似文献
19.
《Pain Management Nursing》2014,15(3):619-624
Arterial punctures for arterial blood gases (ABGs) analysis are described as the most painful laboratory procedure and are performed without the benefit of pain management. This study originated from one nurse's concern about the level of pain her hospitalized patients endured when she drew their ABGs. A review of the literature found that ABG pain relief has not been studied in hospitalized patients. Therefore, this study explored the question “Can the pain of arterial blood gas draws be reduced through the use of infiltration with a local anesthetic agent?” This study compared the pain scores of 40 hospitalized patients who received either no intervention or one of three analgesic interventions (infiltration of 0.7 ml 1% lidocaine, 0.7 ml buffered 1% lidocaine, or 0.7 ml of bacteriostatic saline at the arterial puncture site). Results showed that, although lidocaine and buffered lidocaine are effective in reducing the pain associated with the arterial puncture, plain lidocaine was the only intervention in which the pain rating score for the overall experience was significantly diminished. This study is limited by partial randomization, small sample size, and patient duress; however, it provides a foundation for further nursing research that explores methods to reduce the pain associated with this very painful procedure. Future studies should be directed at larger, diverse populations, multiple operators, and comparison of interventions to topical analgesics and nonpharmacological measures. 相似文献
20.
Kim A. Noble 《Journal of PeriAnesthesia Nursing》2009,24(6):401-405