Dehydration and rehydration therapy in paediatrics


Dehydration is one of the most common acute conditions in pediatrics, encountered in both outpatient and hospital practice. Due to a high proportion of body water and immature renal functions, children, especially infants, are highly susceptible to rapid internal environment collapse. An incorrectly chosen rehydration procedure or underestimating initial symptoms can lead to the development of hypovolemic shock and severe electrolyte imbalances. The key to successful treatment is the early classification of the degree of dehydration based on the clinical presentation and the subsequent choice of an adequate form of fluid replacement. In this algorithm, you will practice the diagnosis, calculation of losses, and selection of rehydration techniques and solutions for both an infant and an older child, including follow-up realimentation and parent education.

2026
dehydration
diuresis
rehydration therapy
oral rehydration solution
infusion solution
Published at: 5.6.2026

Review

The algorithm 'Dehydration and Rehydration Therapy in Pediatrics' represents a clearly structured and didactically highly beneficial tool for both teaching and practicing clinical decision-making. I particularly appreciate the interactive format with a virtual story, which encourages active engagement of the solver and allows for a better understanding of correct and incorrect procedures. The structure of the algorithm is logical and user-friendly, making orientation easy even for less experienced students and beginning physicians. Overall, this is a well-crafted educational material with high potential for use in both undergraduate and postgraduate education.

Sources

ŠUMNÍK, Zdeněk; JABANDŽIEV, Petr and JANOTA, Jan. Pediatrie. Praha: Galén, 2025. ISBN 978-80-7492-777-5.


MIKOLÁŠEK, Peter. Dehydratace u dětí. Pediatr. praxi, 2018, vol. 19, iss. 5, p. 252-255.

Learning targets

1. The solver can recognize the signs of dehydration in a child.
2. The solver can determine the degree of dehydration in a child based on clinical manifestations and estimated weight loss.
3. The solver is able to choose an adequate method of rehydration therapy based on the severity of dehydration, the patient's needs, and laboratory findings.
4. The solver can set an approximate schedule for adequate intravenous therapy in a child.

Key points

1. Based on clinical manifestations and weight loss, we distinguish between mild, moderate, and severe dehydration in children.
2. Typical symptoms include dry mucous membranes, prolonged capillary refill time, sunken eyes, a sunken fontanelle, oliguria or anuria, tachycardia, and altered consciousness.
3. Oral rehydration therapy administered in small, frequent doses is preferred. The child must be awakened for fluids even during the night.
4. The intravenous route is chosen for moderate to severe dehydration, in children who do not tolerate oral intake, or in cases of non-compliance.

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External links

DOLEŽEL, Zdeněk. Pitný režim u dětí. Pediatr. praxi, 2007, vol. 8, iss. 3, p. 136-138.


HAVRÁNEK, Jiří; DEDEK, Vítězslav; FAJT, Martin; SÁDLO, Martin; HEINIGE, Pavel and BROSCH, Kornel. Základní principy parenterální rehydratace v pediatrii. Pediatr. praxi, 2009, vol. 10, iss. 2, p. 92-97.


MITROVÁ, Katarína. Zvracející dítě. Pediatr. praxi, 2014, vol. 15, iss. 5, p. 275-279.


AMBROŽOVÁ, Helena. Akutní průjmy u dětí. Pediatr. praxi, 2015, vol. 16, iss. 2, p. 82-85.

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