Normal rendering for sound allows playback in mono or stereo through one or two speakers (or equivalent headphones) or, in the case of surround sound, through multiple loudspeakers carefully arranged in a room (or through specialized headphones).
An easy way to remember what e.g. means is to think of it as standing for example given.. Alternatively, just say eg out loud â it sounds just like the first syllable in example. i.e. i.e. stands for id est which means that is.
ECG (EKG) (electrocardiogram): A record of the electrical impulses that immediately precede contraction of the heart muscle. The waves produced are known as the P,Q,R,S and T waves. An ECG is a useful means of diagnosing disorders of the heart, many of which produce deviations from normal electrical patterns. Electrocardiography causes no discomfort. Electrodes connected to a recording machine are applied to the chest, wrists, and ankles. The machine displays the electrical activity in the heart as a trace on a moving graph or on a screen. An ECG can be taken at home; a 24-hour record can be obtained from a tape recorder worn by the patient.