经抢救后患者意识恢复，心电图示窦性心律，Q-T间期为580毫秒。为明确诊断可参考的检査有（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32398' and id < 2574306 and id<>'2574306' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32398' and id > 2574306 and id<>'2574306' order by id asc limit 5