This app was designed to be used as a practical handbook for rotating residents, advanced practice providers, and fellows. It is based upon 20 years of PICU practice, and while much of the content describes practice or protocols here at UFHealth/Shands Children’s Hospital, it could be applied in most settings. I would like to thank Tara Smith for her early inspiration for this project, as well as all of the expert nurses and physicians who contributed content. You will find their names cited in their individual sections. I would also like to thank Leslie Avery and Scott Rivkees for their support of this project. This app is being provided free of charge due to the generosity of the Children’s Miracle Network and the University of Florida Department of Pediatrics.