Freebase(0.00 / 0 votes)Rate this definition: Sponson. Sponsons are projections from the sides of a watercraft, for protection, stability, or the mounting of equipment such as armaments or lifeboats, etc. They extend a hull dimension at or below the waterline and serve to increase flotation or add lift when underway.
ECG (electrocardiogram) and high blood pressure. 1  An electrocardiogram (ECG) is a test which measures the electrical activity of your heart to show whether or not it is working normally. 2  An ECG records the heartâs rhythm and activity on a moving strip of paper or a line on a screen.
Sinus Rhythm EKG (ECG) Tracing. EKG tracings are printed on grid paper or displayed on a patient monitor. These tracings, the EKG waveform, have key features which indicate sinus rhythm or abnormalities (arrhythmias). There are six wave components which are commonly analyzed in determining if the EKG is a sinus rhythm.