<p>It is necessary for nurses in all healthcare settings to have knowledge about pressure ulcers (PUs). All emergency nurses working in three educational  hospitals affiliated to Qazvin University of Medical Sciences were invited to participate in a study to assess PU knowledge. A questionnaire consisting of 41 questions categorised into three sections (PU onset and staging, PU characteristics and preventive interventions related to PUs) was used. Nurses’ knowledge was considered good if they correctly answered >90% of the questions. Forty-four nurses participated (32 female; average age 29.4±5.5 years; average clinical experience 5.1±2.5 years). Thirty-three nurses (75.3%) gave correct responses to all 41 items. Of the three sections, 36 nurses (82.7%) answered all the questions on PU onset correctly, 62.5% got all of the PU  characteristics questions right and 80.7% correctly answered the PU preven-Ttion questions. Emergency nurses do not have sufficient knowledge about PU care. An educational programme is needed to improve their knowledge.</p>