Management of Severe Dehydration and Acute Kidney Injury in Children

Immediate Assessment and Stabilization

The Centers for Disease Control and Prevention recommends assessing for signs of severe dehydration, including severe lethargy or altered consciousness, prolonged skin tenting, cool and poorly perfused extremities, decreased capillary refill, rapid deep breathing, tachycardia, and hypotension, as indicated by MMWR Recommendations and Reports 1, 2
The American Academy of Pediatrics suggests measuring vital signs, weight, and mental status to determine if this constitutes shock or near-shock, which is a medical emergency, as recommended by MMWR Recommendations and Reports 3
For severe dehydration with AKI, the World Health Organization recommends initiating immediate IV rehydration with 20 mL/kg boluses of Ringer's lactate or normal saline until pulse, perfusion, and mental status normalize, as indicated by MMWR Recommendations and Reports 3

The American Academy of Pediatrics recommends continuing IV fluid resuscitation until hemodynamically stable, then transitioning to oral rehydration solution (ORS), as suggested by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 4, 5
The National Kidney Foundation suggests monitoring urine output closely as oliguria/anuria indicates severe AKI requiring potential dialysis support, and avoiding central venous lines if possible due to high thrombosis risk in nephrotic/HUS states, as recommended by Nature Reviews Nephrology 7

The American Gastroenterological Association recommends resuming age-appropriate diet with easily digestible foods once vomiting is controlled and no active hematemesis, as suggested by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 6, 4
The American Society for Parenteral and Enteral Nutrition suggests considering urgent gastroenterology consultation for possible endoscopy if hematemesis persists or is severe, although no specific citation is provided for this recommendation

The American Academy of Pediatrics recommends administering ondansetron to facilitate oral rehydration once adequate IV hydration is achieved, as suggested by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 6

The Centers for Disease Control and Prevention recommends obtaining stool cultures for dysentery (bloody diarrhea), as indicated by MMWR Recommendations and Reports 2
The Infectious Diseases Society of America suggests waiting for stool culture results before initiating antibiotics unless there is clear evidence of invasive bacterial infection with high fever, as recommended by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 6, 4

The American Academy of Pediatrics recommends reassessing hydration status every 2-4 hours during initial resuscitation, as suggested by Praxis Medical Insights: Practical Summaries of Clinical Guidelines 6, 4
The National Kidney Foundation suggests daily weights and strict intake/output monitoring, as recommended by Nature Reviews Nephrology 7