Can you correctly interpret the ECG findings in a marathon runner with gastroenteritis? What is their significance? What management is required?
15-year old boy presents to ED with sudden onset of palpitations while playing sport. Manage this Broad Complex Tachycardia
This ECG Exigency serves up 5 different risky rhythm strips. Each tells a story. Can you work out what is happening before its too late?
A 62-year man who is awaiting a bed under the medics for investigation of an episode of chest pain earlier in the day. Can you interpret his ECG?
ECG Basics ECG Rate ECG Rhythm ECG Axis Calculation Lead positioning ECG Waves P wave Q wave R wave T wave U wave Osborne wave Delta wave Epsilon Wave Intervals and Segments PR interval PR Segment QT Interval ST Segment J point QRS complex ECG anatomy Left Atrial Enlargement Right Atrial Enlargement Bi-Atrial Enlargement Clinical […]
ECG Library Content ECG BASICS — Waves, Intervals, Segments and Clinical Interpretation ECG A to Z by diagnosis –alphabetical diagnostic approach to the ECG ECG CLINICAL CASES — ECG’s placed in clinical context with a challenging Q&A approach 100 ECG Quiz — Self-assessment tool for examination practice ECG Reference SITES and BOOKS — the best of the […]
A 23 year-old man had an episode of syncope at home. He is in severe respiratory distress, extremely pale, dripping with sweat. Interpret his ECG?
R wave Overview The R wave is the first upward deflection after the P wave The R wave represents early ventricular depolarisation Abnormalities of the R wave There are three key R wave abnormalities: Dominant R wave in V1 Dominant R wave in aVR Poor R wave progression Dominant R wave in V1 Causes of […]
The Q wave A Q wave is any negative deflection that precedes an R wave Origin of the Q Wave The Q wave represents the normal left-to-right depolarisation of the interventricular septum Small ‘septal’ Q waves are typically seen in the left-sided leads (I, aVL, V5 and V6) Q waves in different leads Small Q […]
The usual paper speed is 25mm/sec: 1mm (small square) = 0.04 sec 5mm (big square) = 0.2 sec If a different paper speed is used, calculations will have to be modified appropriately. Estimate the rate There are multiple methods to estimate the rate: Regular rhythms: Rate = 300 / number of large squares in between […]