Electrolytes - Serum

Also Known as Electrolyte Panel, Serum Electrolytes, Cl/K/NA, Cl- K+ Na+, Complete Serum Electrolytes, Sodium Potassium, S. Electrolytes

No preparation required

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General Physician/Internal Medicine

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testsTest(s) Included (3)


    3 tests included



blood sample




Age group

7 years & above

Serum electrolytes test is a group of tests that measure the level of electrolytes in the body. Serum electrolytes like sodium, chloride, potassium and bicarbonate help maintain the body's metabolism. The sodium in the blood helps keep the body’s fluid balance and also helps in the proper functioning of nerves and muscles. Chloride content in the blood helps in maintaining the blood volume and pressure.  The potassium present in the blood helps in keeping your heart healthy and the bicarbonate helps maintain the body’s acid balance. 

The top Serum electrolytes tests are available in Hyderabad, Bangalore, Gurgaon, Noida, Chennai.

In general, serum electrolytes normal values are as follows: 
Sodium: 136 to 144 mmol/L. 
Potassium: 3.7 to 5.1 mmol/L. 
Calcium: In adults, 8.5 to 10.2 mg/dL.

While electrolytes normal range can vary in different individuals, it is important to keep a check on the balance of serum electrolytes in the body for its proper functioning. Apollo 24|7’s serum electrolytes test price is competitive and accurately measures the levels of minerals that are essential for proper functioning of nerves, muscles and cells.

Why should you get the serum electrolytes test done? 

  • As a part of routine check up 
  • To detect a balance of electrolyte levels 
  • To detect acid-base imbalance 
  • As part of evaluation of  kidney disease

Medically reviewed by Dr Shakti, General Physician/Internal Medicine at Indraprastha Apollo Hospitals, New Delhi

faqFrequently Asked Questions (FAQs)

To take the blood sample, a tourniquet (elastic) band is placed tightly on the upper arm. The patient is asked to make a fist. This helps in the buildup of blood filling the veins and it becomes easy to collect the blood. The skin is cleaned before inserting the needle in the vein in order to prevent bacteria from entering. The needle is then inserted into the vein in the arm and the blood sample is collected in the vacutainer.
The signs and symptoms of electrolyte imbalance include headache, confusion, nausea, vomiting, loss of energy, fatigue, drowsiness, muscle weakness, spasms or cramps, seizures, and coma.
Low levels of sodium are known as hyponatremia and high levels of sodium are known as hypernatremia.
Low levels of potassium are known as hypokalemia and high levels of potassium are known as hyperkalemia.
Imbalance of electrolyte levels can be prevented by drinking lot of water, and drinks containing electrolytes.
Yes, please inform your doctor if you are taking any medicines or supplements as it might interfere with the test results.
Electrolytes imbalance can be prevented by drinking plenty of water and taking a balanced diet, which should include a good proportion of fruits, salads and vegetables.
Yes, potassium (k+) and chloride (cl-) are serum electrolytes.
Certain medications can lower serum electrolytes in the body. Hence, inform your doctor of any  medications you are taking.
Annual health checks are essential for preventive care. These checkups allow early detection of potential health issues, thus improving the prognosis. Annual checkups help assess the need for interventions or adjustments in the current treatment plan for pre-existing illnesses. This checkup can also help you save tax under section 80 D.

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Why should Apollo be your preferred healthcare partner?

  • 40 Years of legacy and credibility in the healthcare industry.
  • NABL certified multi-channel digital healthcare platform.
  • Affordable diagnostic solutions with timely and accurate test results.
  • Up to 60% discount on Doorstep Diagnostic Tests, Home Sample Collection.
  • An inventory of over 100+ laboratories, spread across the country, operating out of 120+ cities with 1200+ collection centers, serving over 1800+ pin codes.

The information mentioned above is meant for educational purposes only and should not be taken as a substitute to your Physician’s advice. It is highly recommended that the customer consults with a qualified healthcare professional to interpret test results