Because of the inherent difficulty in remembering eponyms and the cascade of procedures, mnemonics have been devised to aid our memory in the emergency situation. In this study we aimed to evaluate whether eponyms and mnemonics are remembered, understood and applied by qualified doctors and midwives of all levels in the UK.An anonymous questionnaire was devised collecting demographic data and information about the knowledge and clinical use of HELPERR and PALE SISTER mnemonics for shoulder dystocia. In addition, 3 extended matching questions (EMQ) evaluated participants’ knowledge of the correct maneuvers used in shoulder dystocia, vaginal breech delivery and the management of uterine inversion. They were also asked to match the correct maneuvers with the corresponding eponym. The questionnaires were distributed at a london teaching hospital and a district general hospital to fully qualified doctors and midwifes who are currently practicing in obstetric care.  The sheets were marked and the scores analyzed. A two tailed Fishers exact test was done when comparing results between groups. Click to see the results…