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Discharge Instructions for Hypokalemia (Child)

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Your child has been diagnosed with hypokalemia. This means a low level of potassium in their blood. Potassium helps the nerve and muscle cells function, including those in the heart. A low level of potassium in the blood can cause abnormal heart rhythms and even heart attack. Here's what you need to know about home care for your child.


Diet changes

  • Encourage your child to eat more potassium-rich foods, such as:
    • Bananas.
    • Milk.
    • Oranges and orange juices.
    • Kiwis.
    • Raisins.
    • Tomatoes.
    • Spinach.
    • Dried fruit.
    • Cantaloupe.
    • White beans, canned.
    • Lima beans.
    • Potatoes.
    • Sweet potatoes.
    • Avocados.
    • Yogurt.
  • Give your child a potassium supplement, as directed by their doctor.
  • After strenuous exercise or any activity that causes your child to sweat a lot, give your child a drink that has high levels of potassium. This includes coconut water, orange juice, or low-sodium vegetable juices.
  • If your child is vomiting or has diarrhea, give them drinks or foods that contain potassium.
  • Help your child stay away from foods that are high in salt. This includes canned and prepared foods that are high in salt.


Medicine

  • Make sure your child takes all their medicines exactly as directed.
  • Tell your child's doctor about all the prescription and over-the counter medicines that your child is taking. This includes herbal preparations. Certain medicines can affect your child's potassium levels.


Follow-up

  • Make a follow-up appointment, or as advised.
  • Have your child's potassium levels checked regularly.
  • Keep all follow-up appointments. Your child's doctor needs to watch your child's condition closely.


When to call for help

Call 911if your child has:

  • A fast, irregular heartbeat.
  • Shortness of breath or chest pain.
  • Muscle cramps, spasms, or twitching.
  • Paralysis.

Contact your child's doctor right away if your child has:

  • Vomiting or diarrhea.
  • Extreme tiredness (fatigue).
  • Weakness.

Featured in

Online Medical Reviewer: Amy Finke RN BSN

Online Medical Reviewer: Jessica Gotwals RN BSN MPH

Online Medical Reviewer: Liora C Adler MD

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.
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