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Electrolytes Serum Test

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Electrolytes are minerals found in the blood, urine and other body fluids. Electrolytes play an important role in maintaining the fluid levels in the body, maintaining the acid-base balance, monitoring the blood pressure and cardiac rhythm, smooth functioning of the muscles and the nerves and also in the overall functioning of the lungs and the kidneys. Electrolytes test is a blood test used to measure the amount of important electrolytes in the blood including sodium, potassium, and chlorides. Some conditions such as dehydration, kidney disorders, and cardiovascular disease can lead to electrolyte loss, and the levels may get too low or too high. This condition is known as electrolyte imbalance.

Written by: Dr.Shibani R, Medical Writer, Medical Affairs


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Electrolytes Serum Test Price

Metropolis Healthcare is a leading diagnostics centre and pathology lab in India equipped with the latest state-of-the-art technologies that provides the Electrolytes Serum Test with a clear pricing structure.

The Electrolytes Serum Test Price in Mumbai is ₹ 550 .

We are committed to deliver accurate and quality results from the best labs in India with complete transparency regarding test cost and turnaround time. No matter where you are, we strive to offer patients high-quality service that is affordable and accessible.

Frequently Asked Questions

  • The electrolyte test is mainly done in cases of suspected fluid loss or acid-base imbalances like severe dehydration, burns, cancer etc.
  • It is also done in known cases of lung diseases, cardiac impairments and renal diseases where the electrolyte levels may be affected.
  • Besides this, your doctor may prescribe an electrolytes serum test if you are prescribed medications such as ACE inhibitors or diuretics.

Electrolyte test is a blood test measuring the electrolyte levels. The sodium, potassium, and chloride levels are mainly measured under it.

An electrolyte serum test requires a simple blood draw. The phlebotomist will take a blood sample from a vein in your arm and send it to the lab for testing.

The electrolyte level may be low in cases of severe dehydration, burns, cancers, kidney diseases, cardiac abnormalities, acidosis [excess accumulation of acids in the body fluids] or alkalosis [too much alkaline in the blood]. Certain medications or severe vomiting may also affect the electrolyte levels in the blood. A few medical conditions may also lead to electrolyte overload leading to abnormally high electrolyte levels. 

Typically, fasting is not required for an electrolytes serum test. However, your healthcare provider may ask to fast if the doctor has prescribed additional blood tests such as blood sugar or cholesterol along with the electrolytes blood test.

There's no special preparation needed for an electrolytes serum test. However, confirm with your doctor if there are any specific instructions for your test. Let your doctor know about any medications, supplements, or vitamins you are taking, as these can affect the test results.

Just like any other blood test, the electrolytes serum test carries little risk. You may experience a slight drop in your blood pressure after the blood draw, which can make you feel nauseous or dizzy. Let your provider know if you are feeling unwell.

The normal range for electrolytes can vary slightly depending on the lab doing the test and the methodology used, but here's a general guideline for common electrolytes in adults:

  • Potassium: 3.7 to 5.1 mmol/L
  • Sodium: 136 to 144 mmol/L
  • Chloride: 97 to 105 mmol/L
  • Calcium: 8.5 to 10.2 mg/dL in adults
  • Magnesium: 1.7 to 2.2 mg/dL
  • Bicarbonate: 22 to 30 mmol/L
  • Phosphate: 2.5 to 4.8 mg/dL

Your doctor may prescribe you certain additional tests depending on your health conditions and other symptoms you may be experiencing.

  • Blood gas test: This test is used to measure the levels of acidity, carbon dioxide, and oxygen in our blood. Its results can help pinpoint the exact cause behind an acid-base imbalance in our body, such as a kidney or lung disorder.
  • Serum Electrolyte test
  • Sodium
  • Potassium
  • Chlorides

Doctors may recommend an electrolytes serum test if one is exhibiting symptoms that depict a deficiency of electrolytes in our blood. The symptoms to watch out for include:

  • Vomiting and nausea
  • Weakness
  • Confusion
  • Irregular heartbeat
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