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时间:2019-10-13
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1、DepartmentofMedicineHejianZOUDiseasesCausedbyPhysicalandChemicalFactors--Briefintroductionintroduction:Factorscausediseases:chemicalsphysicalbiologicalpsychologicalchemicals:occupational,non-occupational.physical:occupational,non-occupationalPhysicalfactors:MicrowaveVD
2、T(videodisplayterminal)Electromagneticfield……poisoningDefinition:Whatispoisoning?toxicantsdose-relatedhazardstothebodyChemicalsfrom:industrial、medicine、pesticide、plants、animalsOrganortissueinvolved):cardiovascular、respiratory,nerve,liver,kidney,bloodCausation:occupational,
3、dailylifeOnset:acute,subacute,chronicmechanisms一、absorb,metabolicandexcretionoftoxicantsapproach:respiratorytract,occupationaldigestivetract,dailylifeskinlatex……metablism:liver-oxidation,deoxidize,hydrolyze,combinationeffects:decreaseorincreaseintoxicityexcretion:kidne
4、y,resp.trac.,diges.trac,latex,hair,nail二、toxicmechanisms1.irritation:acid,alkaline2.anoxic:3.anaesthesia:organicsolvent、anaesthetic4.inhibitofenzyme5.Effectsofcellmembraneorganelle6.Receptfunction三、whytoxication?1.toxicantsitself2.doseandduration3.susceptibilityClinicalman
5、ifestation一、acutepoisoningshortterm,largedose1.skinandmucosa2.respiratorysystem3.neurosystem4.Bloodsystem5.cardiovascularsystemarrhythmia,shock,heartfailure,suddendeath6.urinarytrac.hematuria,albuminuria7.liverdiseasecausebyintoxication8.others二、chronicpois.longterm,lowerd
6、ose1.Respiratorysystem2.neurosystem3.Bloodsystem4.Cardiovascular5.Urinary6.Liver7.othersdiagnosisanddifferentialdiagnosis1.toxicants2.manifestation(dose-effectiverelationship)3.laboratoryanalysis4.epidemiologicalstudytreatment一、principle:1.stopcontact2.Rescue:airway,bloodp
7、ressure,circulation)3.excretionoftoxicants4.Antidotestretment5.othertreatmentprevention一、propagandize二、safekeeping
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