The ECG Made Easy

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This point can be elevated, resulting in the ST segment that follows it being raised (this is known as “high take-off”).

The ECG Made Easy - 9th Edition - Elsevier The ECG Made Easy - 9th Edition - Elsevier

For over forty years The ECG Made Easy has been regarded as the best introductory guide to the ECG, with sales of over half a million copies as well as being translated into more than a dozen languages. Hailed by the British Medical Journal as a "med Whenever the direction of electrical activity moves away from a lead, a negative deflection is produced. It’s important to understand which leads represent which anatomical territory of the heart, as this allows you to localise pathology to a particular heart region. The PR interval should be between 120-200 ms (3-5 small squares). Prolonged PR interval (>0.2 seconds)It represents the time taken for the ventricles to depolarise and then repolarise. The components of an ECG Smart study tools such as note sharing and subscription, review mode, and Microsoft OneNote integration. You might also be interested in our OSCE Flashcard Collection which contains over 3000 flashcards that cover clinical examination, procedures, communication skills and data interpretation. If P waves are absent and there is an irregular rhythm, it may suggest a diagnosis of atrial fibrillation. If a patient has a regular heart rhythm, their heart rate can be calculated using the following method:

Understanding an ECG | ECG Interpretation | Geeky Medics Understanding an ECG | ECG Interpretation | Geeky Medics

Narrow-complex escape rhythms (QRS complexes of <0.12 seconds duration) originate above the bifurcation of the bundle of His.

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The deflection height represents the amount of electrical activity flowing in that direction (i.e. the higher the deflection, the greater the amount of electrical activity flowing towards the lead).