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ID:20653274
大小:8.45 MB
页数:82页
时间:2018-10-14
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1、Nur4206Managementofpatientswithrenal/urinarydisordersByLindaSelfFunctionsoftheKidneyRegulationofwaterexcretionRegulationofelectrolytefunctionRegulationofacid-basebalance—retainHCO3-andexcreteacidinurineRegulationofbloodpressure--RAASRegulationofRBCsVitaminDsynthesisFunctionsofKidneycont.Se
2、cretionofprostaglandinEandprostacyclinwhichcausevasodilation,importantinmaintainingrenalbloodflowExcretionofwasteproducts-body’smainexcretoryorgan.Urea,creatinine,phosphates,uricacidandsulfates.Drugmetabolites.Physiology/PathophysiologyRenin-angiotensinsystemStimuliforReninExcretionAngiote
3、nsinogeninliverReninreleaseAngiotensinIConvertingenzymeinlungsAngiotensinIIRenalautoregulationIncreasedBP,increasedcirculatingvolumeHormonesinfluencingrenalfunctionRenin—raisesBPBradykinins—increasebloodflowandvascularpermeabilityErythropoietinADHAldosterone—promotessodiumreabsorptionandpot
4、assiumexcretionNatriuretichormones—releasedfromthecardiacatriaandbrain.RiskfactorsforrenalorurologicdisordersHypertensionDiabetesmellitusImmobilizationParkinson’sdiseaseSLEGoutSicklecellanemia,multiplemyelomaBPHPregnancySCIGerontologicConsiderationsGFRdecreasesfollowing40yearswithayearlydec
5、lineofabout1mL/minRenalreservedeclinesMultiplemedicationscanresultintoxicmetabolitesDiminishedosmoticstimulationofthirstIncompleteemptyingofbladderUrinaryincontinenceDiagnosticEvaluationUrinalysisandcultureSp.Gravity—1.005-1.020Microscopicexaminationforprotein,RBCs,ketones,glycosuria,presen
6、ceofbacteria,generalappearanceandodorLeukocyteesterase—enzymefoundinWBCsNitrites–bacteriaconvertnitratestonitritesOsmolality—accuratemeasurementofthekidney’sabilitytoconcentrateurine.Normalrangeis500-1200mOsm/kg.Cultureimportantin‘Id’ingpathogenUrinetestsAlbuminuria—albumininurinenotmeasura
7、blebydipstickNormalvaluesinfreshlyvoidedsampleshouldrangebetween2.0-20formenand2.8-28forwomen.Higherlevelsindicatemicroalbuminuria.Canalsobedeterminedby24hspecimenRenalFunctiontestsUrineosmolality—indicationofconcentratingability,changesseenearlyindiseas
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