The present study aimed to describe the knowledge and attitudes of parents and carers in performing cardiopulmonary resuscitation on infants and children. A self-administered questionnaire distributed to a convenience sample of parents and carers attending the Emergency Department of The Children's Hospital at Westmead, Australia from February to March 2008. Main outcome measures were the prevalence of previous cardiopulmonary resuscitation training, willingness and confidence to perform cardiopulmonary resuscitation on infants and children compared with adults, and an objective assessment of knowledge of current resuscitation guidelines. A total of 348 parents and carers were surveyed; 53% had received previous cardiopulmonary resuscitation training, 75% prior to the previous year. There was no significant difference on their willingness to perform cardiopulmonary resuscitation on an adult versus a child (75.6% and 75.8% respectively, P= 0.870). However, 81% were willing to perform cardiopulmonary resuscitation on a relative whereas only 64% were willing to perform cardiopulmonary resuscitation on a stranger (P < 0.001). Respondents were moderately confident in delivering cardiopulmonary resuscitation to a collapsed child; mean score of 2.9 on 5-point Likert scale. Only 11% of respondents knew the correct rate for chest compressions and the ratio of compressions to ventilations; 8% had performed cardiopulmonary resuscitation in a real situation. Parents and carers are willing to perform cardiopulmonary resuscitation, especially on family members. However, their knowledge of the current guidelines was poor. More public education is required to update those with previous training and to encourage those who haven't to be trained.