Dehydration in Children By Michael F Cellucci, MD, Sidney Kimmel Medical College at Thomas Jefferson University Reviewed / Revised Apr 2023 View Patient Education Etiology Pathophysiology Symptoms and Signs Diagnosis Treatment Practical Rehydration Example Procedure More Information Topic Resources Maintenance Fluid Calculation... Clinical Correlates of Dehydratio... Estimated Electrolyte Deficits... Holliday-Segar Formula for... Dehydration is significant depletion of body water and, to varying degrees, electrolytes.