IRCT2017053034231N1 IRCT 2017-08-05 Vice Chancellor for Research, Tehran University of Medical Science Designing and evaluating the Efficacy of mobile Cardiac Dysrhythmia Simulator Application on Critical Care Nurses’ knowledge and Satisfaction in Comparison With Handout. Designing and evaluating the Efficacy of mobile Cardiac Dysrhythmia Simulator Application on Critical Care Nurses’ knowledge and Satisfaction in Comparison With Handout. 2017-07-23 anticipated 72 Complete https://irct.ir/trial/26209 interventional Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Health service research. N/A Critical Care Nurses’ Knowledge and satisfaction. Intervention 1: Research subjects are divided into two groups (application and educational booklet. in application Group, the application were designed on their mobile phones to be installed and To learn how to work with application, explanations will given to the subjects. A communication channel for asking questions in subjects about this application will be designed. Intervention 2: In the control group (educational booklet), written content will be provided in the form of a text file as a handout.