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Clinical Notice:Calculations must be re-checked and should not be used alone to guide patient care, nor should they substitute for professional clinical judgment. OpiCalc is an auxiliary reference tool for qualified healthcare professionals.

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Recent Journal Updates

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Clinical Context

We think this might be relevant to the clinical guidance for Pediatric Dehydration Fluid Deficit.

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Clinical Context

We think this might be relevant to the clinical guidance for Pediatric Dehydration Fluid Deficit.

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Clinical Context

We think this might be relevant to the clinical guidance for Pediatric Dehydration Fluid Deficit.

Pediatric Dehydration Fluid Deficit

Fluid DeficitIsotonic Dehydration Replacement

Assessment Inputs

kg

Volume Deficit

Requires weight and estimated % dehydration to calculate total fluid deficit and replacement rates.

Guidelines & Evidence

Verified

Last Review: 2026

Clinical Guide

Dehydration Assessment
Mild (3–5%):Barely detectable. Increased thirst, slightly dry mouth.
Moderate (6–9%):Sunken eyes, reduced skin turgor, delayed cap refill (2–3s), reduced urine output.
Severe (≥ 10%):Markedly sunken fontanelle, very dry mucous membranes, cap refill > 3s, hypotension, altered consciousness.
Fluid Deficit Formula
Formula:Fluid Deficit (mL) = % Dehydration × Weight (kg) × 10
Replacement:Replace over 24 hours (minus any resuscitation boluses given). Add daily maintenance on top.

Related Scores in Practice

In clinical practice, this assessment is frequently evaluated alongside other validated measures. Depending on the patient's presentation and specific diagnostic requirements, you may also need to utilize the Pediatric Maintenance Fluid or the Pediatric Fluid Resuscitation to formulate a comprehensive care plan.

Last Comprehensive Review: 2026

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