Diagnostic Tests

Na+ Electrolytes Ion Selective Electrode Blood


Na+ Electrolytes Ion Selective Electrode Blood

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What is this test?

This test is used to check the levels of sodium from a sample of blood from an individual. This test is usually adviced by the doctor to check the kidney function of an individual.

What is sodium?

Sodium is an essential electrolyte in the body that plays a role in maintaining the water in and around the cells. Sodium also plays a role in the maintenance of muscle, blood pressure and nerve function. Increase or decrease in the concentration of the levels of sodium in the body can lead to diseases or conditions. Decreased level of sodium in the blood is called hyponatremia.

Why this test is recommended?

Your doctor may recommend this test if an individual is suffering from diseases or conditions like aldosteronism (excessive secretion of aldosterone hormone), diabetes insipidus, adrenal hypotension, abnormal antidiuretic hormone secretion, Addison's disease, dehydration, etc.

The doctor may recommend this test if an individual experiences symptoms like increase or decrease in the urine output, kidney stones, swelling of hands and feet, burning sensation or discomfort while passing urine, etc.


Drugs such as diuretics(water pills), NSAIDs (Pain killers), Prostaglandins (medicines used for the treatment of glaucoma or ulcers of the stomach), Corticosteroids etc may affect the test results. Hence, you are advised to inform your doctor about all your current medications before undergoing this test. may interfere with the test results.

Also known as Na+ Electrolytes.

Test Preparation

Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your Na+ Electrolytes Ion Selective Electrode Blood. Your doctor will give specific instructions depending on your condition on how to prepare for Na+ Electrolytes Ion Selective Electrode Blood.

No Specific test preparations are necessary for this test.

Understanding your test results

Based on the test results, your doctor may advise appropriate medical treatments, lifestyle modifications, or further diagnostic tests.

If the blood sodium concentration is higher than the normal range the may indicate the use of certain medicines like water pills, abnormal functioning of adrenal glands, inflammation/swelling of kidneys, intake of too much of salt, etc.

If the blood sodium concentration is lower than the normal reference range it may indicate diseases or conditions like diarrhoea, heart failure, chronic kidney disease, liver damage, etc.

GenderAge groupsValue
MALEAll age groups136 - 145mEq/L
FEMALEAll age groups136 - 145mEq/L
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