Dehydration Differential Diagnoses

Updated: Dec 31, 2017
  • Author: Lennox H Huang, MD, FAAP; Chief Editor: Timothy E Corden, MD  more...
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Diagnostic ConsiderationsImportant considerations

It is important for clinicians to recognize and appropriately treat the following:

  • The underlying cause for dehydration (eg, diabetic ketoacidosis [DKA], diabetes insipidus, pyloric stenosis)
  • Hypoglycemia
  • Severe hyponatremia or hypernatremia
  • An acute abdomen
  • An inadequate volume administration (too slow, not enough) for the child with severe dehydration
  • Cardiogenic shock (gallop rhythm, hepatomegaly): Note that rapid fluid resuscitation may further impair cardiac output. Reassessment following fluid administration may reveal any untoward physiologic result.
  • Other causes of shock (eg, sepsis, anaphylaxis)

Differential Diagnoses