Metabolism that utilizes oxygen is called aerobic metabolism. Energy production through oxygenation (with oxygen) yielding 32 ATP molecules from the interaction of one glucose and Read More
Archives
Afterload
The pressure that the ventricle (right or left) must overcome to eject blood (i.e. the left ventricle pumps against aortic diastolic pressure and systemic vascular Read More
Agonal Rhythm
A fatal dysrhythmia with rates usually less than 20/minute and common widening of the QRS; also referred to as the dying heart. Asystole is characterized Read More
Alpha Stimulation
The peripheral vasoconstriction that results from circulating catecholamines (epinephrine & norepinephrine). 1. Six Second ECG Guidebook (2012), T Barill, p. 190 Read More
Amplitude
The height or depth of waves and complexes of an ECG in millimetres; represents millivolts where 10 mm is 1 millivolt with a properly calibrated Read More
Anaerobic Metabolism
Energy production without oxygen with only 2 ATP produced as well as lactic and pyruvic acid. When energy demands surpass the supply of vital energy Read More
ANCC
American Nurses Credentialing Centre The American Nurses Credentialing Center credentials both organizations and individuals who advance nursing. Whether you want to boost your career prospects Read More
Angina
Chest discomfort – usually pressure or tightness – that results from a relative poor oxygen supply to cardiac tissue (ischemia). 1. Six Second ECG Guidebook Read More
Anterior Fascicle
The left bundle branch splits into the septal, anterior and posterior fascicles. Normal ventricular depolarization begins with the septal fascicle of the left bundle branch Read More
Anterior Infarction and R wave progression
Poor R wave progression (i.e. not until leads V5 or V6) may signal an anterior infarction. In line with QRS axis deviation, abnormal R wave Read More