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心房颤动时,洋地黄用量怎样估计? 心房颤动发生时,在未用药物之前,一般室率多较快,约大于120次/分,经用洋地黄后,室率减慢。如休息情况下,室率维持60～80次/分,轻活动则室率不超过90～100次/分,可认为其时用量较适当。室性心律失常时是否可用洋地黄? 极少应用。但室性心律失常在使用其它药物都效情况下,且系非洋地黄所致,特别又伴有心力衰竭者,这时可考虑应用洋地黄,
Atrial fibrillation, how to estimate the amount of digitalis? Atrial fibrillation occurs, before the use of drugs, the general room rate is much faster, more than about 120 beats / min, with digitalis, ventricular rate slowed. Such as resting, the room rate to maintain 60 to 80 beats / min, light activity rate is not more than room 90 to 100 beats / min, can be more appropriate when the amount of time. Whether digitalis can be used in ventricular arrhythmias? Rarely used. But ventricular arrhythmias in the use of other drugs are ineffective, and caused by non-digitalis, especially with heart failure, then consider the application of digitalis,