Electrolyte Imbalance
Electrolytes such as sodium and potassium keep nerves, muscles and the heart working. An imbalance — too high or too low — can cause weakness, cramps and dangerous heart rhythms.
Causes & risk factors
- Dehydration, vomiting or diarrhoea
- Kidney disease
- Certain medicines (diuretics, some BP pills)
- Hormone problems (adrenal or thyroid)
- Very high or low fluid intake
Common symptoms
Tests & diagnosis
Treatment & management
- Treating the underlying cause (dehydration, kidney or hormone problem)
- Careful replacement or removal of the affected electrolyte
- Reviewing medicines that may be responsible
- Fluid correction as needed
- Monitoring the heart when levels are dangerous
When to see a doctor urgently
- Palpitations, fainting or severe weakness
- Confusion or drowsiness
- Severe vomiting or diarrhoea with cramps
- Very abnormal levels on a blood test
Not a diagnosis. MedDroid gives general educational information about electrolyte imbalance. It cannot examine you, diagnose or prescribe — always confirm with a qualified doctor.
Frequently asked questions
Why is high potassium dangerous?
Very high potassium can disturb the heart rhythm and, if severe, cause cardiac arrest. It needs urgent treatment, often with an ECG check.
Can dehydration cause electrolyte problems?
Yes. Vomiting, diarrhoea and inadequate fluids commonly upset sodium and potassium. Careful rehydration and finding the cause usually corrects it.
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MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.