高钾血症的心电图表现

Serumpotassium5.5mmol/Lisassociatedwithrepolarizationabnormalities:?PeakedTwaves(usuallytheearliestsignofhyperkalaemia)

Serumpotassium6.5mmol/Lisassociatedwithprogressiveparalysisoftheatria:?Pwavewidensandflattens?PRsegmentlengthens?Pwaveseventuallydisappear

Serumpotassium7.0mmol/Lisassociatedwithconductionabnormalitiesandbradycardia:?ProlongedQRSintervalwithbizarreQRSmorphology?High-gradeAVblockwithslowjunctionalandventricularescaperhythms?Anykindofconductionblock(bundlebranchblocks,fascicularblocks)?SinusbradycardiaorslowAF?Developmentofasinewaveappearance(apre-terminalrhythm)

Serumpotassiumlevelof9.0mmol/Lcausescardiacarrestdueto:?Asystole?Ventricularfibrillation?PEAwithbizarre,wide







































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