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    What is a Kidney Function Test with Electrolytes Test?

    The Kidney Function test (KFT) is designed to evaluate kidney health and efficiency by measuring how effectively the kidneys filter waste from the body. This test analyses various blood parameters to help diagnose kidney conditions, track the progression of kidney disease, and monitor the effectiveness of treatments.

    The kidneys are essential for eliminating toxins and waste products from the body, regulating fluid and mineral (electrolyte) balance, producing vitamin D, and generating hormones like erythropoietin for red blood cell production and renin for blood pressure control. These critical functions make kidney health vital for overall well-being.

    Early stages of kidney disease often go unnoticed due to the lack of symptoms, making KFTs essential for everyone. These tests are crucial for the early detection and management of kidney issues. For people living in Mumbai with high blood pressure, diabetes, heart disease, or a family history of kidney disease, regular KFTs are particularly important. Thus, people may examine the function of their kidneys, which is essential for preserving their overall wellness, by scheduling a KFT in Mumbai.

    Kidney Function Test with Electrolytes Test Parameters

    A KFT provides a thorough evaluation of kidney health and electrolyte balance. Key test parameters include:

    Uric Acid

    A byproduct of purine metabolism, uric acid is excreted by the kidneys. High uric acid levels can be seen in conditions like gout, kidney tubule damage, certain cancers, or diets high in alcohol and animal products. Chronic kidney disease often results in decreased uric acid levels.


    A nitrogenous compound formed during protein metabolism in the liver and excreted by the kidneys. Elevated urea levels suggest inadequate kidney function, possibly due to kidney damage, failure, or high protein intake.

    Estimated Glomerular Filtration Rate (eGFR)

    Using creatinine levels, eGFR estimates the rate at which kidneys filter substances from the blood, serving as the most reliable indicator of kidney function and aiding in diagnosing kidney diseases.

    Blood Urea Nitrogen (BUN)

    Produced from protein breakdown, BUN is excreted by the kidneys. Increased BUN levels in the blood can indicate kidney disease.


    Formed during muscle metabolism, creatinine is normally removed by the kidneys. Elevated creatinine levels in the blood may indicate reduced kidney function or other factors like a high protein diet or significant muscle mass.

    BUN/Creatinine Ratio

    This ratio helps diagnose kidney disorders and catabolism, often elevated in kidney diseases, critical illnesses, or upper gastrointestinal bleeding.


    The KFT includes an electrolyte panel, crucial for evaluating kidney-regulated minerals in the blood, such as Calcium, Potassium, Sodium, Chloride, and Phosphorus, to assess overall mineral balance and potential kidney, lung, or heart issues.

    Kidney Function Test with Electrolytes Test Preparation

    Before taking a Kidney test at home, it is crucial to be properly prepared for accurate results. Here are key considerations:


    While KFT typically requires no special preparations, follow any specific instructions from your doctor. For KFT with electrolytes, you may avoid nicotine and need to drink plenty of fluids.

    Best Time to Get Tested

    No fasting is needed, so the test can be done at any convenient time during the day.

    Who Should Get a Kidney Function Test

    This test is recommended for individuals with kidney disease symptoms, chronic conditions like diabetes or hypertension, or a family history of kidney issues.

    Cautions Before Taking Kidney Function Test

    Let your doctor know about any medications or antibiotics you are taking, as you may need to stop them if they could affect the test results.

    Why Take a Kidney Function Test with Electrolytes Test?

    You might need a KFT for the various reasons listed below:

    Symptoms of Kidney Diseases

    A KFT is often recommended for symptoms like difficulty urinating, pain during urination, blood in urine, and frequent urination, which may indicate kidney disease. These tests provide early detection, which permits prompt action.

    Assessment of Disease Progression

    KFTs are beneficial for assessing the evolution of kidney disease over time, offering vital insights into treatment adjustments.

    Health Conditions

    Conditions such as diabetes and hypertension can damage kidney function, making regular KFTs essential for monitoring and managing the impact of these conditions on the kidneys.

    Electrolyte Balance

    KFTs, often coupled with electrolyte panels, are vital for assessing kidney health and ensuring the balance of crucial minerals like calcium, sodium, and potassium.

    Monitoring Treatment

    KFTs help track how well the kidneys are responding to treatments for various health conditions.

    Kidney Function Test with Electrolytes Test Results & Interpretation

    Listed below are the normal ranges for various test parameters along with conditions that may cause deviations:

    Test ParametersNormal RangeConditions associated with abnormal levels
    Urea19-43 mg/dL (Newborn: 6.5-25.5)High urea and BUN levels are suggestive of poor kidney function due to acute or chronic kidney diseases, decreased blood flow to the kidneys as in congestive heart failure, shock, stress, recent heart attack or severe burns, bleeding from the gastrointestinal tract, conditions that obstruct urine flow or dehydration. Low urea and BUN levels are uncommon and are not usually a cause for concern. Although they are not used to detect or track severe liver disease or malnutrition, they can be observed in these circumstances. Normal pregnancy also exhibits low urea levels.
    Blood Urea Nitrogen (BUN)6-20mg/dL
    Creatinine0.66-1.25mg/dLCreatinine is elevated in kidney damage, infection, urinary tract obstruction, diabetic complications, congestive heart failure, and reduced blood flow to kidneys due to shock.
    Uric Acid3.5-8.5mg/dLHigh levels of uric acid are seen in kidney disease, pre-eclampsia, purine-rich food, alcoholism, and side effects of cancer treatment.
    eGFRNormal >= 90 Mild decrease 60-89 Mild-moderate decrease 45-59 Severe decrease 15-29 End-stage kidney disease < 15 All values in ml/min/1.73m²GFR is an important parameter for detecting chronic kidney disease.
    BUN/creatinine ratio10-20High BUN/creatinine ratio suggests kidney injury or loss of muscle mass in a critical illness.
    Sodium137 to 145 mmol/LSodium levels can increase during dehydration, a disorder of the adrenal glands, kidney disease, and diabetes insipidus. Low sodium levels are caused by diarrhoea, vomiting, kidney disease, liver failure, Addison’s disease, and malnutrition.
    Potassium3.5 to 5.5 mmol/LHigh levels may be due to kidney failure, hypoaldosteronism, metabolic or respiratory acidosis. Low levels may be due to diarrhoea, vomiting, hyperaldosteronism, and the use of diuretics.
    Calcium8.4 to 10.2 mg/dLLow calcium levels may be due to hypoparathyroidism, kidney failure, pancreatitis, malnutrition, or a disorder in calcium absorption. High calcium levels may be due to hyperparathyroidism, hyperthyroidism, sarcoidosis, drugs like diuretics, and excessive calcium supplementation.
    Phosphorus2.5 to 4.5 mg/dLLow phosphorus levels may be used for malnutrition, vitamin D deficiency, overactive parathyroid glands, and severe burns. High phosphorus levels may be seen during impaired kidney function, hypothyroidism, liver disease, and diabetic ketoacidosis (a complication of diabetes)
    Chloride98 to 107 mmol/LHigh levels may be due to diarrhoea, Addison's disease, metabolic acidosis, respiratory alkalosis, and renal tubular acidosis. Low levels may be due to burns, CHF, metabolic alkalosis, vomiting, dehydration, respiratory acidosis (compensated)

    FAQs on Kidney Function Test with Electrolytes Test in Hyderabad

    The KFT test cost is ₹1160. The Kidney Function test price includes convenient home sample collection within 60 minutes of booking, with results delivered in a mere 6 hours.

    The KFT evaluates how effectively your kidneys filter waste products from your body, aiding in the detection of acute and chronic kidney failure, kidney injury, kidney stones, and various other kidney diseases.

    No, fasting is not needed for a KFT test.

    Yes, free at-home blood sample collection for the Kidney test in Mumbai is offered within 60 minutes of schedule, subject to slot availability.

    To book any blood test or health checkup on our website, follow these steps:

    • Search for the Test : Find the KFT test in Mumbai or at home and select Orange Health’s listing.

    • Review and Book : Select the test, check the prerequisites, input your address, and confirm your booking by picking a suitable time slot for sample collection.

    • Sample Collection : Our trained eMedic will arrive at your home within the chosen time slot to collect the sample.

    • Lab Processing : The sample will be processed in our NABL accredited and ICMR-approved labs.

    • Receive Results : Reports will be sent to you via email or WhatsApp within 6 hours and will be accessible on our app.

    It is important to note that normal ranges for KFT parameters like urea, creatinine, and electrolytes can vary. For the most accurate and up-to-date information specific to each parameter, please refer to the Orange Health Labs website.

    The Kidney Function test at home is a quick process, with results typically delivered within 6 hours of sample collection.

    The KFT regimen will be established by your doctor in accordance with your unique health situation.

    The KFT includes parameters such as urea, BUN, creatinine, BUN/creatinine ratio, eGFR, uric acid, sodium, potassium, chloride, calcium, and phosphorus.

    Kidney Function test is available in Colaba, Nariman Point, Marine Drive, Malabar Hill, Churchgate, Worli, Dadar, Parel, Byculla, Bandra, Andheri, Juhu, Ghatkopar, Powai, Chembur, Vashi, Belapur, Santacruz, Khar, Versova, Lokhandwala, Goregaon, Borivali, Kandivali, Mulund, Bhandup, Kurla.

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