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观察100例低血钾患者的QRS波振幅变化,结果表明低血钾时QRS波振幅(29.301±12.532mm)较正常血钾时(26.485±11.544mm)显著增高(P<0.01).对低血钾致QRS波振幅增高的机理进行了探讨.
The changes of QRS amplitude in 100 patients with hypokalemia were observed. The results showed that the amplitude of QRS wave in hypokalemia group (29.301 ± 12.532mm) was significantly higher than that of normal potassium group (26.485 ± 11.544mm) (P <0.01) Potassium-induced QRS wave amplitude increased mechanism was discussed.