Dismiss Modal

Recovery

Discharge Instructions for Hyponatremia

Choose a preferred language


You were diagnosed with hyponatremia. This means your blood level of sodium (salt) is too low. Salt is needed for the body and brain to work. Very low blood levels of sodium can be fatal. Symptoms can include headache, confusion, severe tiredness (fatigue), muscle cramps, hallucinations, seizures, and coma. You have been treated to raise your blood levels of sodium. These instructions will help you care for yourself at home after you've been discharged.


Home care

  • Limit your intake of fluids. Drink only the amounts directed by your doctor.
  • Ask your doctor what you should use to replace fluids if you are throwing up.
  • Keep all follow-up appointments. Your doctor needs to closely watch your condition.

To help prevent hyponatremia:

  • Take all medicines exactly as directed. Certain medicines can lower blood sodium levels.
  • If you have done something that makes you sweat a lot, drink fluids that contain salt and other electrolytes.
  • Tell all of your doctors what medicines you take. Mention all prescriptions, over-the-counter medicines, vitamins, supplements, and herbs.
  • Have your sodium levels checked often. This is vital if you take a medicine that helps your body get rid of water (diuretic).


Follow-up

Follow up with your doctor, or as advised.


When to call for help

Contact your doctor or seek care right away if you have:

  • Severe tiredness.
  • Fainting.
  • Weakness.
  • Dizziness.
  • Loss of appetite.
  • Nausea or vomiting.
  • Confusion, forgetfulness, irritability, or restlessness.
  • Muscle spasms, cramping, or twitching.
  • Seizures.
  • Trouble walking normally.

Online Medical Reviewer: Diane Horowitz MD

Online Medical Reviewer: Paula Goode RN BSN MSN

Online Medical Reviewer: Raymond Kent Turley BSN MSN RN

Date Last Reviewed: 09/01/2025

© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Sample card

Add a description.

Button label
Related Articles
Read article
Wellness
Discharge Instructions for Hypernatremia

You have hypernatremia, a condition in which you have too much sodium in the blood. Learn how to care for yourself at home.

Read article
Metabolic Conditions
Discharge Instructions for Hyponatremia (Child)

Your child has been diagnosed with hyponatremia. This is a low level of sodium in the blood. This sheet can help you care for your child.

Read article
Metabolic Conditions
Hyponatremia

Hyponatremia means low sodium levels in the blood. This health problem most often occurs after prolonged vomiting or diarrhea. Both of these conditions cause the body to lose too much water and sodium.

Read article
Hematology
Discharge Instructions for Hypernatremia (Child)

Your child has hypernatremia and needs certain dietary restrictions and home care. This sheet can get you started.