Archives

A Practice Guide to Basic and 12 Lead ECG Interpretation, written by Tracy Barill, 2012 Introduction The ability to correctly interpret an electrocardiogram (ECG), be Read More

A variety of fast and slow channels that are responsible for depolarization in the myocardial cell. 1. Six Second ECG Guidebook (2012), T Barill, p. Read More

The downward placement of the ST segment greater than 1 mm from the isoelectric line; suggestive of cardiac ischemia, but also may point to ventricular Read More

While ST deviations may be a normal occurrence for a subset of the population, most often ST deviation is a sign of either myocardial ischemia, Read More

The upward placement of the ST segment greater than 1 mm from the isoelectric line; suggestive of cardiac infarction or ischemia. Between the QRS complex Read More

Segment (line) between the end of the QRS complex and the beginning of the T wave; the end of the QRS is marked by the Read More

The number of QRS complexes per minute; note that heart rate may not equal perfused pulse rate. With ECG monitoring, changes in heart rate (HR) Read More

ECG interpretation relies heavily on the QRS complex. The QRS complex represents the depolarization of the ventricles. The repolarization of the atria is also buried Read More

Regular rhythms can almost always be quickly identified with just steps #2 (Is the QRS narrow or wide?) and #3 (Check the P waves and Read More

The amount of blood ejected by either the right or left ventricle with one beat (contraction). While heart rate is an undisputed contributor to cardiac Read More