Initial protocol for daily dangle Initial protocol for daily dangle. BMI, body mass index; ICU, intensive care unit; ETT, endotracheal tube; FiO2, inspired oxygen fraction; PEEP, positive end expiratory pressure. Initial protocol for daily dangle. BMI, body mass index; ICU, intensive care unit; ETT, endotracheal tube; FiO2, inspired oxygen fraction; PEEP, positive end expiratory pressure. Sanjiv Chohan et al. BMJ Open Qual 2018;7:e000339 © Author(s) (or their employer(s)) 2018. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.