Accurate measurement and assessment of the QT interval

QT measurement should be included as part of the systematic interpretation of the electrocardiogram (ECG). Accurate measurement and interpretation of the QT interval will help to identify potentially fatal long QT syndrome (LQTS). The assessment of the QT interval, correction of the QT and the guidelines relating to it are complex. This article discusses the importance of this element of the ECG and offers practical advice on QT assessment based on a review of the relevant literature. </jats:p