IO stands for "intraosseous"-into the bone. It is, in outcome, a electricity drill, made use of to bore a gap by bone and into the marrow, and consequently doesn’t need acquiring a vein. He at last observed a small flashback, then misplaced the vein and couldn’t get the needle back in. As Zellmer tried to get the needle into the jugular, the paramedic stuck Lockett three a lot more occasions on his proper arm, failing every time.