Ejection Fraction The Lower the Number, the Higher the Risk. Ejection fraction, or EF, is the percentage of blood that is pumped out of the heart during each beat. Doctors often use EF to determine how healthy your heart is and how well it is functioning as a pump. A low EF number is a serious health risk.
To really get your costume looking right, try to get an aqua-blue hooded sweatshirt, t-shirt, or tank-top to turn into your Rainbow Dash costume. You don't really need to do anything to the shirt to make a costume out of it, just make sure it's the right color. With your wig, it'll start looking a lot like Rainbow Dash.
Many different shades and colors can be made by using the food coloring alone or mixing them together in varying combinations and ratios. Achieve the perfect aqua color for a batter or frosting by adding a little food coloring at a time in the correct amounts. Add four drops of blue liquid food coloring to a small clear glass bowl. Squeeze in a single drop of green liquid coloring and swirl the glass bowl gently to blend. Hold the glass bowl an inch away from a light to look through the blend of colors and determine if any adjustments are necessary.