The goal of this proposal is to assist our step-wise approach in investigating hyperglycemia in critically ill children by externally validating our glycemic control protocol via multi-center evaluation. In doing so, we will also be developing the infrastructure and a tested intervention that can be leveraged for future studies of hyperglycemia in pediatric critical illness, including a multi-center outcome trial. The specific hypothesis for this project is that our protocol is safe and efficient at identifying and managing hyperglycemia in critically ill or injured children in pediatric ICUs regardless of ICU size, acuity, model, staffing makeup, or clinical focus.