Archives

Paramount in importance is the continuous flow of oxygenated blood. This flow is central to metabolism, the production of energy and other materials necessary for Read More

The network of smaller vessels – particularly the arterioles, the capillaries and the venules that serve regions of tissue. 1. Six Second ECG Guidebook (2012), Read More

Unit of electrical current: artificial pacemakers use current to initiate depolarization of the heart. 1. Six Second ECG Guidebook (2012), T Barill, p. 199 Read More

A physiologist who in the 1920s discovered the 2nd degree AV heart blocks – Type I and Type II; note that the physiologist Wenckebach is Read More

Metaphorically, picture the junction as a gate. In 2nd degree AV block type I, the gate slowly closes with the time taken for the impulse Read More

Modified Central Lead (MCL1) – The modified central lead is created by placing the positive electrode at the 4th intercostal space just to the right Read More

Similarly shaped; suggests that the waves or complexes originate from the same focus. 1. Six Second ECG Guidebook (2012), T Barill, p. 199 Read More

Often associated with atrial hypertrophy, pulmonary hypertension and COPD, MAT is a tachycardia diagnosed by the presence of 3 or more P waves of differing Read More

Premature ventricular complexes (PVC) occur earlier than expected (thus premature) and the QRS width is wide without a preceding P wave. The QRS complex can Read More

milliVolt; the ECG is usually calibrated to display 1mV = 10mm of amplitude. 1. Six Second ECG Guidebook (2012), T Barill, p. 200 Read More