• Moustafa Moustafa, Rasha D Sawaya, Zavi Lakissian, and Rana Sharara-Chami.
• From the Department of Pediatrics and Adolescent Medicine.
• Pediatr Emerg Care. 2022 Jul 1; 38 (7): e1396e1401e1396-e1401.

ObjectivesThere is no consensus in the current literature on the relevance of serum bicarbonate levels, cutoff benchmarks and the management of dehydration; therefore, this study aims to explore whether an association can be established between initial serum bicarbonate levels and the subsequent management of children between the ages of 0 to 36 months presenting to the emergency department (ED) with dehydration.MethodsThe study is a single center, retrospective review of 335 charts of children between 0 and 36 months of age presenting to the ED of an urban academic tertiary hospital between June 2014 and June 2016 with a medical history suggestive of dehydration and documented serum bicarbonate levels during their visits.ResultsA total of 310 charts were analyzed. No significant difference was found between mean serum bicarbonate levels of admitted and discharged patients (18.82 mmol/L vs 18.75 mmol/L; P = 0.89). Children with serum bicarbonate levels below 15 mmol/L were significantly more likely to receive a fluid bolus ( P = 0.00) in the ED but neither the length of stay in the ED ( P = 0.07) nor in the hospital ( P = 0.41) was affected. Bounce backs within 7 days of discharge were not associated with serum bicarbonate levels at first presentation, but rather with a shorter duration of diarrhea ( P = 0.013).ConclusionsInitial serum bicarbonate level of dehydrated children does not appear to be associated with the severity of dehydration, vomiting, diarrhea and the patients' management in the ED or the hospital. Initial serum bicarbonate is associated with the decision to administer fluid boluses and potential bounce back.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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