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.
You can either use a hand-held steamer or a steam iron for this purpose. Place your dress in a hanger and hang it in an open area. There must be sufficient space for you to move around the dress. Now take the hand-held streamer or steam iron and spray steam on the dress from a distance of around 6 inches. Start from the top of the dress and proceed downwards. Spraying steam all over the silk will loosen the fibers and render it wrinkle-free.