This learning system is provided to The Vocational Nursing Institute students and faculty as a donation from the families of Scott Plantz, MD, FAAEM, Scott Dulebohn, MD, Shabir Bhmiji, MS, MD, PhD, and Tammy Toney-Butler, RN, CEN, TCRN, CPEN; the co-founders of StatPearls. This project is dedicated in part to the hard work of authors and editors that made this project possible. If you would like to become an author or editor, please contact us at editor@statpearls.com or sign up at www.statpearls.com.