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Laboratory test

Electrolytes Test (Serum Electrolyte Panel)

Explore the Electrolytes Panel test at PingMeDoc™ for the specified laboratory investigation. Check the exact measurements, specimen type, preparation instructions, current price and report turnaround shown in the laboratory catalogue. Ask a doctor whether this test is appropriate for your symptoms or monitoring needs.

Also known as

Electrolytes Test · Electrolyte Panel · Serum Electrolytes · Sodium Potassium Chloride Test · Na K Cl Test · Serum electrolytes panel · Na K Cl HCO3 test

Sample
Blood
Fasting
Not required
Expected report time
Same day / 24 hours
Parameters
4

Electrolytes Test: quick answers

Electrolytes Test price
₹689, home sample collection
Normal range (adults)
Sodium: 135 to 145 mmol/L; Potassium: 3.5 to 5.1 mmol/L more
Done for
Vomiting, diarrhoea or dehydration; Weakness, cramps, confusion or an irregular heartbeat; Monitoring diuretics (water tablets) and blood pressure medicines
Fasting
Not required
Report
Same day / 24 hours

What is the Electrolytes Test?

An electrolyte test measures the main salts in your blood: sodium, potassium and chloride, and in some panels bicarbonate. These control fluid balance, nerve signals, muscle function and heart rhythm. The panel is used to check for dehydration and the effects of kidney disease, heart disease and many medicines.

Electrolytes Test normal range

MeasurementTypical adult value
Sodium135 to 145 mmol/L
Potassium3.5 to 5.1 mmol/L
Chloride98 to 107 mmol/L
Bicarbonate (if included)22 to 29 mmol/L

A sample that is shaken, delayed or difficult to draw can falsely raise potassium. An extended electrolyte panel may also include calcium, magnesium and phosphorus.

Ranges differ between laboratories and methods. The reference range printed on your own report is the one to read your result against.

What your Electrolytes Test result means

Low sodium
Can be caused by some medicines (such as diuretics), vomiting or diarrhoea, heart, liver or kidney disease, and drinking a lot of water. A very low sodium can cause confusion and needs prompt care.
High sodium
Most often reflects dehydration or not drinking enough fluid.
Low potassium
Can follow vomiting, diarrhoea or diuretic use, and can cause weakness, cramps and heart rhythm problems.
High potassium
Can occur with kidney disease and some blood pressure medicines, or be a false result from a damaged sample. A truly high potassium can affect the heart, so doctors act on it quickly and may repeat the test.

One result is not a diagnosis. A doctor reads it with your symptoms, history, medicines and other tests.

Why is the Electrolytes Test done?

  • Vomiting, diarrhoea or dehydration
  • Weakness, cramps, confusion or an irregular heartbeat
  • Monitoring diuretics (water tablets) and blood pressure medicines
  • Kidney disease, heart failure or liver disease
  • Routine checks during illness or before surgery

What does the Electrolytes Test (Serum Electrolyte Panel) measure?

4 parameters. Expand a group to see the measurements, units and available method details.

Kidney Function & Electrolytes2 parameters
ParameterUnitCatalogue methodLOINC
Sodium (Na⁺)mmol/LIndirect ISE (Ion Selective Electrode)2951-2
Chloride (Cl⁻)mmol/LIndirect ISE (Ion Selective Electrode)2075-0
Other measurements2 parameters
ParameterUnitLOINC
Potassium (K⁺)mmol/L2823-3
Bicarbonate (HCO₃⁻)mmol/L1963-8

The reference interval printed on your actual laboratory report governs interpretation. Intervals can vary by laboratory, method, age, sex and pregnancy. Methods can also vary by processing laboratory.

Electrolytes Test: sample & preparation

Sample: Blood. Fasting: Not required.

  • No fasting is needed. Avoid repeatedly clenching your fist during the blood draw, as this can falsely raise potassium.

Electrolytes Test in your city

Electrolytes Test in AdyarElectrolytes Test in Anna NagarElectrolytes Test in BengaluruElectrolytes Test in ChandigarhElectrolytes Test in ChennaiElectrolytes Test in ChromepetElectrolytes Test in CoimbatoreElectrolytes Test in DelhiElectrolytes Test in GuduvancheryElectrolytes Test in GurugramElectrolytes Test in HyderabadElectrolytes Test in IndoreElectrolytes Test in JaipurElectrolytes Test in LucknowElectrolytes Test in NagpurElectrolytes Test in NoidaElectrolytes Test in OMR ChennaiElectrolytes Test in PatnaElectrolytes Test in PorurElectrolytes Test in PuneElectrolytes Test in SelaiyurElectrolytes Test in SholinganallurElectrolytes Test in TambaramElectrolytes Test in Urapakkam

Frequently asked questions

What does an electrolyte panel test include?
A standard panel measures sodium, potassium and chloride, and often bicarbonate. An extended panel may add calcium, magnesium and phosphorus. The exact list for this test is shown in the parameters section of this page.
Is fasting needed for an electrolytes test?
No fasting is needed. Keep taking your usual medicines unless your doctor says otherwise, and tell them about diuretics or potassium supplements.
Why is the electrolytes test done for people on blood pressure medicines?
Some blood pressure medicines and water tablets can lower or raise sodium and potassium. Regular checks help the doctor adjust the dose safely.
Can a high potassium result be wrong?
Yes. If red cells break in the tube, for example from a delayed or difficult draw, potassium leaks out and the result reads high. Doctors often repeat an unexpectedly high potassium before acting on it.
How much does the Electrolytes Panel cost?
The current online price is ₹689, with MRP ₹2,019. Review your booking total before payment.
Can I book this test for home collection?
Yes. Add your collection address and choose an available collection slot at checkout.
When is the report expected?
The catalogue lists Same day / 24 hours. Confirm the collection and report schedule with the booking team.
Can I book this with other tests?
You can add available tests to the same cart. Review the combined preparation instructions and collection requirements with the booking team.

Sources: Tietz Textbook of Laboratory Medicine, 7th edition; European clinical practice guideline on diagnosis and treatment of hyponatraemia (Spasovski et al., 2014). General information, not medical advice.

This page gives catalogue facts only (sample, preparation, report time) and has not been reviewed by a doctor. It is general information, not a diagnosis or advice for you: your doctor decides which tests you need and what the results mean.

Book the Electrolytes Test (Serum Electrolyte Panel)

4 parameters · No fasting required · Report time: Same day / 24 hours

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