Mar 5, 2011 · The shape of the ECG waveform. Each lead’s ECG recording is slightly different in shape. This is because each lead is recording the heart’s electrical activity from a different direction (a.k.a viewpoint). When the electrical activity within the heart travels towards a lead, you get a positive deflection.

At the heart of ECG interpretation lies the ability to determine whether the ECG waves and intervals are normal. This chapter will focus on the ECG waves in terms of morphology (appearance), durations and intervals.

Oct 20, 2011 · Use this EKG interpretation cheat sheet that summarizes all heart arrhythmias in an easy-to-understand fashion. One of the most useful and commonly used diagnostic tools is electrocardiography (EKG) which measures the heart’s electrical activity as waveforms.

The shape of a normal ECG complex includes a P wave, QRS complex and T wave. The basic ECG strip is made up of a baseline with deflections caused by movement of electrical impulses either toward (positive deflection) or away (negative deflection) from electrodes.

Feb 28, 2011 · To determine the cardiac axis, you must look at leads I, II and III. Read our cardiac axis guide to learn more. Typical ECG findings for normal cardiac axis: Lead II has the most positive deflection compared to leads I and III. Typical ECG findings for right axis deviation: Lead III has the most positive deflection, and lead I should be negative.

Nov 6, 2024 · From identifying key components of the heart rhythm to recognizing common arrhythmias and abnormalities, this guide offers a step-by-step approach to interpreting EKGs accurately. 1. Understanding the EKG Basics. What is an EKG?

Fortunately, basic ECG interpretation can be rather straightforward, as long as you know the basics. An electrocardiogram is a tracing of the electrical activity that is taking place within the heart.

Dec 19, 2023 · This article covers the physiology underpinning ECGs, as well as explaining pathological ECG traces and how they arise. Some common, clinically relevant, ECG traces will also be covered.

A normal ECG displays consistent waveforms, intervals, and shapes that indicate healthy electrical activity in the heart. In contrast, deviations from these norms can signal potential cardiac issues, requiring careful analysis.

Dec 12, 2024 · Each section of an ECG waveform reveals details about the heart’s electrical activity. By studying these components, healthcare professionals can evaluate heart function and detect abnormalities. The P wave, a small upward deflection, reflects atrial depolarization.