洋地黄是临床常用的主要强心药物之一 ,随着对洋地黄量效关系的深入研究 ,临床将地高辛作为维持疗法的首选药物 ,用于降低心力衰竭 (心衰 )恶化率 ,在临床长期应用。然而其治疗指数低 ,药物动力学个体差异大 ,极易发生过量中毒。因此 ,进行其血药浓度监测有利于地高辛中毒的早 Digitalis is one of the main cardiac drugs commonly used clinically. With the further study of the dose-response relationship of digitalis, digoxin is clinically used as the drug of choice for maintenance therapy to reduce the worsening rate of heart failure Long-term clinical application. However, its therapeutic index is low, individual differences in pharmacokinetics, prone to excessive poisoning. Therefore, the monitoring of blood concentration is conducive to digoxin poisoning early