What are the basics of ECG?
Table of Contents
The main part of an ECG contains a P wave, QRS complex and T wave. Each will be explained individually in this tutorial, as will each segment and interval. The P wave indicates atrial depolarization. The QRS complex consists of a Q wave, R wave and S wave and represents ventricular depolarization.
What is electrocardiography and its components?
There are three main components to an ECG: the P wave, which represents depolarization of the atria; the QRS complex, which represents depolarization of the ventricles; and the T wave, which represents repolarization of the ventricles.
What are the types of electrocardiography?
There are 3 main types of ECG:
- a resting ECG – carried out while you’re lying down in a comfortable position.
- a stress or exercise ECG – carried out while you’re using an exercise bike or treadmill.
What are the 5 waves of an ECG?
The basic pattern of electrical activity across the heart.
- P wave. The P wave is a small deflection wave that represents atrial depolarization.
- PR interval.
- QRS wave complex.
- ST segment.
- T wave.
- Wave direction and size.
- Interpreting the ECG.
- Rate.
How is 12 lead diagnosed?
A standard surface EKG is recorded using electrodes, or sticky patches, placed on the body surface, typically over the chest and the extremities. These electrode wires are connected to the EKG machine with recordings from 12 different locations on the surface of the body, the so-called12-lead EKG.
What are the basics of EKG?
EKG Basics.ppt [Read-Only] EKG Basics Ben Taylor, PhD, PA-C P waves only in V 3-6 ST elevation in R-sided leads Biphasic T waves ST segment elevation greater in lead III than II Inferior wall MI Right Ventricular MI Right Ventricular MI Criteria • Inferior wall MI • ST segment elevation greater in lead III than II
What is an electrocardiogram (ECG)?
The electrocardiogram (ECG) is a representation of the electrical events of the cardiac cycle. Each event has a distinctive waveform, the study of which can lead to greater insight into a patient’s cardiac pathophysiology. Electrocardiogram (ECG/EKG). 13-60.
What are the 12 conventional leads in electrocardiography?
19. ELECTROCARDIOGRAPHIC LEADS – CONVENTIONAL 12 conventional leads, physiologically divided into two groups viz: Bipolar leads- 3 Standard limb leads Unipolar leads-3 Augmented limb leads and 6 precordial chest leads Bipolar leads : These record the actual difference in potential across the two electrodes.
What should be included in the ECG Clinical interpretation?
• Rate, intervals & rhythm • Axis • Is there hypertrophy • Ischemia or infarction • Any other unusual findings • Putting it all together for the patient References ECG Clinical Interpretation: A to Z by diagnosis.