Critically ill children receive fluids for multiple reasons including resuscitation, nutrition, and medications. However, while it is well established that fluid overload is associated with negative outcomes in critical care, it is challenging for clinicians to consider all fluid sources and adjust accordingly. Fluid creep refers to insidious IV fluid intake (medications, flushes, etc.) in excess of standard predicted maintenance fluid requirements (MFR). This phenomenon has been previously described in burn patients and adults, but is less clear among pediatric patients. We aimed to quantify fluids administered to patients admitted to a quaternary Pediatric Intensive Care Unit (PICU) in comparison to predicted MFR in order to quantify the association between fluid creep (FC) and fluid overload.