High Sodium in Infants: Causes, Dangers & When to Seek Help

Potential Causes of Hypernatremia in Babies

  1. Dehydration – diarrhea, vomiting, inadequate intake → concentrated sodium.
  2. Kidney disease – impaired sodium/water regulation.
  3. Endocrine disorders – diabetes insipidus, Cushing syndrome.
  4. Medications – corticosteroids, diuretics.
  5. Excess dietary sodium – processed foods, salty snacks, improperly diluted formula.

Why It’s Serious

High sodium can cause seizures, brain injury, and death if untreated. Always seek immediate medical evaluation for suspected hypernatremia in an infant.

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