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.
Study the diagram above to familiarize yourself with the dash harness. 2. Install the fuse box. 3. Route the dash harness using the factory support straps. 4. Make all connections as shown on the following pages of this dash harness kit. 5. Once this harness is installed, continue to bag 'H', and install the rest of the kit (bags H,J,K,L,M).