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.
Create a bow with your scarf. Wrap your scarf around your neck, and tie a loose knot near your collarbone. Then, just as you would with shoe-laces, tie the ends of the scarf together in a big floppy bow. Adjust the bow so that it lays how you like, and move it so that it is either off to the side or directly in front.Your scarf-bow is finished!ie your scarf in a flowing loop. Similar to tying an infinity scarf, creating a long-flowing loop of fabric allows you to showcase the print of your scarf. Lay your scarf out on a flat surface, and tie the corners together to form a loop. Place this loop around your neck with the tied ends at the back.