Electrolytes
A blood test, often called an electrolyte panel, that measures minerals that help balance water and acid–base levels in your body.
Electrolytes
A blood test, often called an electrolyte panel, that measures minerals that help balance water and acid–base levels in your body.
Also known as
- Serum electrolytes
- Sodium potassium
What it measures
- Electrolytes such as sodium, potassium and chloride
Why a doctor may order it
Often part of a routine blood screening or a comprehensive metabolic panel, and may be used to find out whether the body has a fluid imbalance or an acid–base imbalance.
What it helps evaluate
It can help a doctor check for imbalances that affect fluids, muscles, nerves and heart rhythm.
Preparation
No special preparation is needed for an electrolyte panel.
Fasting
No fasting is needed for the panel itself. If it is part of a wider panel, follow the instructions for that panel.
Important considerations
- If you have symptoms, see a doctor rather than waiting for a test.
Discuss results with your doctor
Talk to a doctor about your symptoms and about what your results mean — a single result is not a diagnosis. See a doctor promptly for severe or worsening symptoms.