All rights reserved.iv DEDICATION I dedicate this dissertation to my mother, Liliane J. Cuming (1941Cuming ( -2004 and my grandmother, Phina M. Schumacher (1917Schumacher ( -2007. Two women who won't see me graduate, but never doubted that I would.Also to my father, K. Gordon Cuming who taught me at an early age that all things were possible with the right amount of persistence and dedication. Using an ex post facto, non-experimental design, the memberships of five professional associations whose members comprise surgical teams were invited to complete a mixed methods survey study. The primary research question for the study was: What differences (perceptual and demographic) exist between surgical team vii members that influence their choices of wearing or not wearing PPE during operative/invasive procedures? Four principal differences were found between surgical team members.Functional (i.e., profession or role based) differences exist between the groups. Age and experience (i.e., time in profession) differences exist among members of the groups.Finally, being a nurse anesthetist influences the use of risk assessment to determine the level of PPE to use.Four common themes emerged across all groups informing the two study purposes. Those themes were: availability, education, leadership, and performance.Subsidiary research questions examined the influence of previous accidental exposure to blood or body fluids, federal regulations, hospital policy and procedure, leaders' attitudes, and patients' needs on the use of PPE. Each of these was found to strongly influence surgical team members and their use of PPE during operative/invasive procedures.