Electrolyte Panel Test
An electrolyte panel measures the levels of key minerals in your blood to check for imbalances in fluids, acids, and bases. It helps assess how well your body is functioning.
What this test measures
This test measures the levels of sodium, chloride, potassium, bicarbonate, calcium, magnesium, and phosphate in your blood. These minerals help balance water, maintain pH, support nerve and muscle function, and keep your heart and bones healthy.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Higher-than-normal results
High levels of an electrolyte can indicate conditions such as dehydration, kidney disease, or an imbalance like hypernatremia (high sodium) or hyperkalemia (high potassium). Certain medicines can also raise levels.
Lower-than-normal results
Low levels of an electrolyte can indicate conditions such as overhydration, malabsorption, or an imbalance like hyponatremia (low sodium) or hypokalemia (low potassium). Certain medicines can also lower levels.
Frequently asked questions
What is an electrolyte panel?
It is a blood test that measures the levels of main electrolytes like sodium, potassium, chloride, and bicarbonate to check for fluid or pH imbalances.
Why might I need this test?
It is often part of a routine checkup or used to find out if you have a fluid imbalance or acid-base problem.
What do abnormal results mean?
Abnormal levels can be caused by conditions like dehydration, kidney disease, heart disease, diabetes, or certain medicines. But not all abnormal results mean you need treatment.
Can medicines affect electrolyte levels?
Yes, medicines such as antibiotics, antacids, chemotherapy drugs, diuretics, and steroids can cause abnormal electrolyte levels.
What are the names of electrolyte imbalances?
Examples include hyponatremia (low sodium), hypernatremia (high sodium), hypokalemia (low potassium), and hyperkalemia (high potassium).
Related lab tests
Sources
- MedlinePlus: Electrolyte Panel — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.