Clinical value of electrocardiogram changes on the diagnosis of hyperkalemia
- VernacularTitle:心电图对高钾血症的诊断价值
- Author:
Feng TIAN
;
Taike ZHANG
;
Li ZHAO
;
Yunling QI
;
Yuanyuan WANG
- Publication Type:Journal Article
- Keywords:
Hyperkaelaemia;
Electrocardiogram;
False positive reactions
- From:
Chinese Journal of Primary Medicine and Pharmacy
2008;15(10):1635-1636
- CountryChina
- Language:Chinese
-
Abstract:
Objective To research clinical significance of electrocardiogram(ECG) measuring in diagnosis of hyperkalemia. Methods ECG changes and serum potassium concentration from 72 cases have been analyzed and contrasted. Results Forty-one cases with hyperkalemia are detected by ECG changes. Coincidence rate is up to 56.9% with serum potassium test. When the serum potassium concentration exceeds 5.5mmol/L, the accuracy of ECG in diagnosis of hyperkalemia was 22.2%. The main features arc peaked T wave with tabernacle shape ;when the serum potassium concentration exceeds 6.7mmol/L, the accuracy of ECG in diagnosis of hyperkalemia was 74.3%. The main features are ST debased,P wave with low amplitude and time limit increased. Some patients appeared sinus node-ventride conduction. One or two appeared malignant ventricular arrbythmia; when the serum potassium concentration exceeds 10.0mmol/L,the accuracy of ECG was 100% ,most patients appeared malignant ventricular. Conclusion The electrocardiogram measurement has the better consistency with serum potassium test, and abnormal electrocardio-gram will be eccurred,when mixed other electrolyte unbalance. Pseudo-hyperkalemia can be distinguished accurately and conveniently by using this method.
