A answered. Atrial fibrillation can be caused by a number of different things that predispose the heart to arrhythmias. Most commonly, longstanding high blood pressure is the cause. Other causes include heart disease such as blockage in the coronary vessels or diseases such as pneumonia or COPD.
A board, typically with a hole for the thumb, which an artist can hold while painting and on which colors are mixed. 2. a. The range of colors used in a visual medium, in a picture, or by an artist: a limited palette.
The Pantone Solid palette consists of 1,114 colors, identified by three or four digit numbers, followed by a C, U, Or M suffix.. Originally designed for the graphics industry, the pantone solids palette is now used by a wide range of industries, and is the most commonly used palette.