Archives

A cell’s ability to respond to an impulse by depolarizing. 1. Six Second ECG Guidebook (2012), T Barill, p. 197 Read More

Another term for a premature complex. 1. Six Second ECG Guidebook (2012), T Barill, p. 197 Read More

Pacer spikes should always have a waveform immediately afterwards. Failure to stimulate a depolarization is called loss of capture. Many older monitors will not inform Read More

A false negative ECG does not indicate the presence of cardiac disease that is subsequently established. While an ECG is a superior diagnostic tool, experienced Read More

A false positive ECG occurs when ECG findings are abnormal for a patient that is quite healthy. An example of a false positive is the Read More

With regards to the heart, a fascicle is a smaller branch of the left bundle branch – two fascicles serve the left ventricle (one of Read More

During diastole, the blood is drawn into the ventricle. This takes time, referred to as “filling time”. Without an adequate filling time, the ventricle receives Read More

An artificial pacemaker that fires irrespective of impulses initiated by the heart; risk of Ron-T phenomena and resulting lethal dysrhythmias is possible. 1. Six Second Read More

Established about a century passed by a physiologist Dr. Starling and two colleagues, the law states that the more the cardiac fibres stretch (within limits Read More

The ability to be more specific with QRS axis deviation requires a quick scan of all the limb leads (I, II, III, aVR, aVL, aVF). Read More