Pediatrics

Dehydration in Children: Signs, Oral Rehydration and Emergency Care

Dehydration occurs when a child loses more fluid than they take in, commonly during vomiting, diarrhea, fever or hot weather.

Signs of dehydration Early signs include thirst, dry mouth, fewer wet nappies or urination, dark urine, tiredness and reduced tears. Severe signs include sunken eyes, cold hands, rapid breathing, marked sleepiness or inability to drink.

Oral rehydration Use a properly prepared oral rehydration solution in small frequent sips. After vomiting, pause briefly and restart with very small amounts. Juice, soft drinks and sports drinks do not have the correct salt and sugar balance.

Feeding Breastfeeding should usually continue. Children can return to age-appropriate food as tolerated rather than fasting for long periods.

Urgent care Seek urgent help when the child is difficult to wake, has no urine for many hours, persistent green or bloody vomit, blood in stool, severe abdominal pain, very rapid breathing or cannot keep fluids down.

Infants and children with chronic illness can deteriorate quickly and need a lower threshold for assessment.

Frequently Asked Questions

Is plain water enough for dehydration?

Mild thirst may improve with water, but vomiting or diarrhea often requires oral rehydration solution.

Should feeding stop during diarrhea?

Usually no. Continue breastfeeding and age-appropriate food as tolerated.

How can parents tell if urine is reduced?

Fewer wet nappies, long gaps without urination or dark urine are warning signs.

Are sports drinks suitable for young children?

No. They do not have the recommended electrolyte balance.

This information is for education only and does not replace medical assessment or treatment by a qualified physician.

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