Liquefied natural gas, or LNG, is natural gas in its liquid form. LNG is produced by purifying natural gas and super-cooling it to -260Â°F to turn it into a liquid. During the process known as liquefaction, natural gas is cooled below its boiling point, removing most of the extraneous compounds found in the fuel.
Ventricular tachycardia (V-tach, often abbreviated VT) refers to a rhythm that arises from the ventricles causing the heart to beat at a rate faster than 100 beats per minute. The ventricular rate is usually above 120 beats/min and may exceed 250 beats/min.
The ventricles are the heartâs two lower chambers. Blood flows from the top chambers of the heart (atria) into the ventricles, then it moves to the lungs and through the aorta to be circulated throughout the body. Tachycardia is a heart rate higher than 100 beats per minute. A normal resting heart rate is 60 to 100 beats per minute. Ventricular tachycardia starts in the heartâs lower chambers. Most patients who have ventricular tachycardia have a heart rate that is 170 beats per minute or more. What Causes Ventricular Tachycardia? Your heart rate is controlled by electrical signals that move across the heart muscle.