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Electrolytes (Na, K, Cl)

Kidney · Blood

Available in:Hisar

Available at 1 lab

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₹350₹299

About this test

What is the Electrolytes Test?

The electrolytes test measures the levels of key minerals in your blood that help maintain fluid balance, nerve function, and muscle contraction. The main components are:

ParameterWhat it shows
Sodium (Na)Electrolyte balance and hydration status
Potassium (K)Muscle and nerve function, heart rhythm
Chloride (Cl)Acid‑base balance and fluid regulation

Why is it done?

  • Routine health check‑ups
  • Evaluation of symptoms such as dizziness, muscle cramps, or abnormal heart rhythm
  • Monitoring kidney function or fluid status in chronic conditions
  • Screening for electrolyte disturbances before major surgery

Early Detection

This test can help identify signs of electrolyte imbalance (e.g., hyponatremia, hyperkalemia), but it does not diagnose a disease on its own. A doctor interprets the results together with your symptoms, history, and other tests.

What do abnormal results mean?

  • High or low sodium may indicate dehydration, kidney disease, or hormonal disorders.
  • High or low potassium can affect heart rhythm and may be caused by kidney problems, medications, or diet.
  • High or low chloride often reflects acid‑base disturbances or kidney issues.

Many factors—hydration, diet, medications, and recent illness—can influence these numbers.

Who should get this test?

  • Adults with unexplained fatigue, dizziness, or muscle weakness
  • Patients on diuretics, ACE inhibitors, or other medications affecting electrolytes
  • Individuals with kidney disease, heart failure, or endocrine disorders
  • Anyone undergoing major surgery or intensive care monitoring

In short: The electrolytes test checks sodium, potassium, and chloride levels to help spot fluid and electrolyte problems early, guiding further medical evaluation.

Used for detecting / monitoring

HyperkalemiaHypokalemiaHyponatremiaHypernatremiaAddison's DiseaseDiabetic KetoacidosisAdrenal Insufficiency

Before your test

Preparation

  • Fasting: No fasting required for electrolytes.
  • If combined with fasting tests: Follow the longest fasting period required (usually 8–12 hours).
  • Procedure: A healthcare professional will draw a small amount of blood (about 5 ml) from a vein in your arm using a needle. The process takes a few minutes.
  • What to expect: A brief needle prick; you may feel a quick pinch. The site may be sore for a day.
  • Precautions: Stay hydrated, but avoid excessive water intake 24 hours before. Inform your doctor about all medications, especially diuretics, ACE inhibitors, or potassium‑sparing drugs.
  • Aftercare: Apply gentle pressure to the puncture site and keep it clean.
  • Note: Confirm any specific instructions with your doctor or the lab. This information is educational and not a substitute for professional medical advice.

Sample type: Blood

Report parameter guide

Sodium (Na)

Electrolyte that helps regulate fluid balance and nerve function

Low: May indicate dehydration, adrenal insufficiency, or excessive loss of sodium through diarrhea or vomiting

High: May indicate overhydration, kidney dysfunction, or excess salt intake

Potassium (K)

Electrolyte essential for heart rhythm and muscle function

Low: May indicate loss through diarrhea, vomiting, or diuretics, or low dietary intake

High: May indicate kidney dysfunction, excess potassium intake, or certain medications such as ACE inhibitors

Chloride (Cl)

Electrolyte that helps maintain acid-base balance and fluid balance

Low: May indicate loss through vomiting, diarrhea, or diuretic use, or metabolic alkalosis

High: May indicate metabolic acidosis, excess salt intake, or kidney dysfunction

Frequently asked questions

It measures sodium (Na), potassium (K), and chloride (Cl) levels in the blood to assess fluid balance, nerve function, and muscle contraction.