摘要
1例69岁女性患者因反复咳嗽、咳痰4个月、乏力1个月入院.电解质检查示血钾2.4 mmol/L；心电图检查示T波低平,T波与U波融合,按心率校正的QT (QTc)间期468 ms.诊断为低钾血症,给予补钾治疗2d,血钾为3.2 ～ 3.3 mmol/L.追问病史得知患者因咳嗽自行服用复方甘草片已2个月,总量超过500片.停用复方甘草片,继续给予补钾治疗,次日患者血钾即升至4.4 mmol/L,乏力症状缓解,心电图检查示T波及QTc间期恢复.停用复方甘草片3d后停用补钾药物,患者血钾维持在3.6 ～ 3.9 mmol/L.随访3个月,患者血钾未再出现异常.
Abstract
A 69-year-old woman was hospitalized because of repeated cough and cough up phlegm for 4 months and fatigue for one month.The electrolyte analysis revealed a potassium level of 2.4 mmol/L and an electrocardiogram showed flat T waves,fusion of T and U waves,and the heart rate-corrected QT (QTc) interval of 468 ms.Hypokalemia was diagnosed.Potassium supplement treatment was given.However,the potassium level was 3.2-3.3 mmol/L after 2 days of treatment.A careful history taking revealed that the patient had been taking compound licorice tablets by herself for cough for more than 2 months (a total of more than 500 tablets).The compound licorice tablets were stopped and potassium supplement was given continuously.The next day,the patient's potassium level increased to 4.4 mmol/L and her fatigue relieved.An electrocardiogram showed normalization of T waves and QTc interval.After 3 days of discontinuation of compound licorice tablets,the potassium supplement treatment was stopped.The patient's potassium level remained 3.6-3.9 mmol/L.Abnormal potassium level did not recur during the 3 months of follow-up.
NETL
NSTL
维普
万方数据