J point
The J point is the the junction between the termination of the QRS complex and the beginning of the ST segment. EKG J-point
Tag ECG Basics
QT Interval
QT interval is the time from the start of the Q wave to the end of the T wave, time taken for ventricular depolarisation and repolarisation
PR segment
ECG PR segment is the flat, usually isoelectric segment between end of the P wave and the start of the QRS complex.
PR Interval
Assessment / interpretation of the EKG PR interval. ECG PR interval is the time from the onset of the P wave to the start of the QRS complex.
Delta Wave
The characteristic ECG findings in the Wolff-Parkinson-White syndrome include a slurred upstroke to the QRS complex (the Delta wave)
U Wave
The U wave is a small (0.5 mm) deflection immediately following the T wave, usually in the same direction as the T wave. Best seen leads V2 and V3.
R wave
On this page we will discuss and provide examples of R wave abnormalities such as Dominant R wave in V1, aVr and PRWP LITFL ECG Library
Q Wave
Q Wave morphology and interpretation. A Q wave is any negative deflection that precedes an R wave. LITFL ECG Library
P wave
Overview of normal P wave features, as well as characteristic abnormalities including atrial enlargement and ectopic atrial rhythms
ECG Exam Template
ECG exam template with headings and prompts which can be used as template for ECG-based exam questions, such as the FACEM FRCEM OSCE
ECG Rhythm Evaluation
Guide to ECG rhythm analysis. The rhythm is best analysed by looking at a rhythm strip. This is a 7 step approach to ECG rhythm analysis
ECG Rate Interpretation
Worked examples of the three main methods to calculate ECG rate, along with an explanation of paper speeds and relevant clinical applications