门诊心电图检査示窦性心动过缓，心室率41次/分。下一步应进行的检査是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32381' and id < 2572540 and id<>'2572540' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32381' and id > 2572540 and id<>'2572540' order by id asc limit 5