手术前后病人的护理.doc
手术前后病人的护理
麻醉分类
1.全身麻醉:使用麻醉药使病人中枢神经系统功能暂时受到抑制而产
生麻醉状态.分为将全麻药通过口鼻种形式.常见并发症:恶心呕吐,
窒息,麻醉过敏,麻醉意外,呼吸道梗阻,低氧血症,低血压,高血压(最
常见),心律失常和心搏骤停.
2.椎管内麻醉:俗称半身麻醉.将药物注入蛛网膜下腔或硬膜外腔,暂
时麻醉通往手术部位的神经,起到镇痛的效果.麻醉后病人处于清
醒状态,甚至可以感觉到医生正在进行手术.
3.局部麻醉:将药物注射到切口周围或喷在粘膜表面,暂时阻断身体
某一区域的神经,具有简单易行,安全性大,起效快,药效消失迅速,副
作用小的特点.
4.针刺麻醉
5.复合麻醉
25Cr-13Nitypeoraweldingmaterialwithhighnickelcontent.Lowtemperaturesteels,austeniticstainlesssteelandheat-resistantcorrosion-resistanthighalloysteelsandausteniticandnon-austenitedissimilarsteelweldedjointsshallcomplywiththefollowingrequirements:toensurepenetrationandfusionundergoodconditions,lowcurrent,short-arc,weldingspeedandmuchfasterweldingprocessandinterpasstemperatureshouldbecontrolled.Highcorrosionresistanceperformanceofdouble-sidedweldedwelds,weldedlayerincontactwithcorrosivemediafinallywelded.Lowtemperaturesteelwelding,suitableforthesurfaceoftheweldbeadannealing.Check6.6.16.6weldinginspectionbeforeweldingmaterialandweldingmaterials,mustbecarriedoutaccordingtostandardacceptance,unqualifiedpersonsmaybeused.Groupbeforethedimensionsofvariouspartsofthemainstructure,Groovesizes,andgroovedsurfaceforinspection.WeldingGrooveandGrooveonbothsidesshouldbecheckedbeforethecleaningquality.Checktheweldingbeforeweldingconditionsareconsistentwiththeprescribedconditions,andweldingequipment.Thedryingandcleaningofweldingmaterialstoconfirmthatitmeetstherequirements.6.6.2intermediateweldinginspectiontackweldingaftertheskullshouldbeclearedcheckstoweldingthedefectsfoundshallberemovedbeforetheycan.Multi-layerweldingweldingaftertheeachfloorshouldimmediatelycleanthelayers,andVisualinspection,founddefectsinweldedtoeliminatebeforetheycanproceedtothenextlevel.Tointerrupttheweldingseam,shouldbecleanedandcheckedbeforecontinuingtoweldtoeliminatewe