Hypernatremia
Medically reviewed by Drugs.com. Last updated on May 4, 2025.
AMBULATORY CARE:
Hypernatremia
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 it is not treated.
Common signs and symptoms of hypernatremia:
- High-pitched cry, muscle weakness, or unusual irritability or drowsiness in infants
- Headache, confusion, or irritability
- Drowsiness
- Seizures
- Muscle weakness or twitching
- Breathing faster than normal
- Nausea and vomiting
- Intense thirst
- Dry eyes or mouth
Call your local emergency number (911 in the US) or have someone call if:
- You have a seizure.
- You cannot be woken.
Seek care immediately if:
- You are breathing faster than normal.
Call your doctor 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 are vomiting.
- You have muscle weakness or twitching.
- You have a headache, confusion, irritability, or any other changes in behavior.
- You are extremely drowsy.
- You have questions or concerns about your condition or care.
Treatment
depends on the cause of your hypernatremia and how severe it is. You will receive liquids to help balance your level of water and sodium. You will also receive treatment for any conditions that caused your hypernatremia.
Nutrition:
Talk to your healthcare provider about any diet changes you need to make, such as decreasing sodium.
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Liquids:
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.
Follow up with your doctor as directed:
You will need more blood tests to check your sodium level. Write down your questions so you remember to ask them during your visits.
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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.
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