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Hypernatremia occurs when there is an imbalance of sodium and water in your body. The amount of sodium (salt) in your blood is higher than normal. Sodium is an electrolyte (mineral) that helps your muscles, heart, and digestive system work properly. It helps control blood pressure and fluid balance. Hypernatremia can become life-threatening if left untreated.


Follow up with your healthcare provider as directed:

You will need more blood tests to check your level of sodium. Write down your questions so you remember to ask them during your visits.


Talk to your healthcare provider about any diet changes you need to make, such as decreasing sodium.


Follow your healthcare provider's advice about the amount of liquid you should drink. Ask how much liquid to drink each day and which liquids are best for you.

Contact your healthcare provider if:

  • Your baby has a high-pitched cry, muscle weakness, or unusual irritability or drowsiness.
  • You have dry eyes or mouth.
  • You have nausea, and you are vomiting.
  • You have muscle weakness or twitching.
  • You have a headache, confusion, irritability, or any other changes in behavior.
  • You have questions or concerns about your condition or care.

Return to the emergency department if:

  • You have a seizure.
  • You cannot be awakened.
  • You are breathing faster than normal.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Hypernatremia (Aftercare Instructions)

Associated drugs

IBM Watson Micromedex

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.