Skip to main content

Privacy: may we measure how you found us? Never your name, number or health details.

PingMeDoc

Laboratory test

RFT Test (Renal Function Test)

Explore the Renal Function Test (RFT) test at PingMeDoc™ for the specified laboratory investigation. Check the exact measurements, specimen type, preparation instructions, current price and report turnaround shown in the laboratory catalogue. Ask a doctor whether this test is appropriate for your symptoms or monitoring needs.

Also known as

RFT Test · Renal Function Test · KFT (Kidney Function Test) · Kidney Function Test · RFT Blood Test · Renal Profile · RFT · Kidney function test · Renal panel · Kidney profile

Sample
Blood
Fasting
Not required
Expected report time
Within 4 hours
Parameters
11

RFT Test: quick answers

RFT Test full form
Renal Function Test
RFT Test price
₹599, home sample collection
Normal range (adults)
Blood urea: About 15–40 mg/dL; Serum creatinine: Men about 0.7–1.3 mg/dL; women about 0.6–1.1 mg/dL more
Done for
Diabetes or high blood pressure, which can damage the kidneys over time; Swelling of feet or face, reduced urine, or tiredness; Before and during medicines that affect the kidneys
Fasting
Not required
Report
Within 4 hours

What is the RFT Test?

The RFT (renal function test), also called KFT (kidney function test), is a group of blood tests that show how well your kidneys are filtering waste. It usually includes urea, creatinine, uric acid and the electrolytes sodium, potassium and chloride; many labs also report eGFR.

RFT Test normal range

MeasurementTypical adult value
Blood ureaAbout 15–40 mg/dL
Serum creatinineMen about 0.7–1.3 mg/dL; women about 0.6–1.1 mg/dL
Uric acidMen about 3.5–7.2 mg/dL; women about 2.6–6.0 mg/dL
Sodium135–145 mmol/L
Potassium3.5–5.1 mmol/L
Chloride98–107 mmol/L
eGFR90 mL/min/1.73 m² or more is normal

The tests in an RFT differ between labs, so check the list on the test page. Creatinine depends on muscle mass, so eGFR, which adjusts for age and sex, is the better guide to kidney function.

Ranges differ between laboratories and methods. The reference range printed on your own report is the one to read your result against.

What your RFT Test result means

High urea and creatinine
Suggest the kidneys are filtering less well. Dehydration, some medicines, heart failure and kidney disease are common causes. Chronic kidney disease is defined by an eGFR below 60, or kidney damage, lasting more than 3 months.
Abnormal sodium or potassium
Can come from kidney disease, vomiting or diarrhoea, and medicines such as diuretics. Very high or very low potassium can affect the heart and needs prompt attention.

One result is not a diagnosis. A doctor reads it with your symptoms, history, medicines and other tests.

Why is the RFT Test done?

  • Diabetes or high blood pressure, which can damage the kidneys over time
  • Swelling of feet or face, reduced urine, or tiredness
  • Before and during medicines that affect the kidneys
  • Before surgery or a CT scan with contrast
  • Follow-up of known kidney disease

What does the RFT Test (Renal Function Test) measure?

11 parameters. Expand a group to see the measurements, units and available method details.

Other measurements5 parameters
ParameterUnitCatalogue methodLOINC
Blood Ureamg/dL22664-7
Uric Acidmg/dLUricase / Peroxidase Method3084-1
Electrolytes (Sodium, Potassium, Chloride)
BUN / Creatinine Ratioratio
Potassium (K⁺)mmol/L2823-3
Kidney Function & Electrolytes6 parameters
ParameterUnitCatalogue methodLOINC
Blood Urea Nitrogen (BUN)mg/dLPhotometry3094-0
Serum Creatininemg/dLPhotometry2160-0
Urea / Creatinine Ratioratio
Estimated GFR (eGFR)mL/min/1.73m²62238-1
Sodium (Na⁺)mmol/LIndirect ISE (Ion Selective Electrode)2951-2
Chloride (Cl⁻)mmol/LIndirect ISE (Ion Selective Electrode)2075-0

The reference interval printed on your actual laboratory report governs interpretation. Intervals can vary by laboratory, method, age, sex and pregnancy. Methods can also vary by processing laboratory.

RFT Test: sample & preparation

Sample: Blood. Fasting: Not required.

  • No special preparation is required; fasting is not necessary. Avoid excess protein/red meat intake and strenuous exercise the day before, as these can transiently raise urea and creatinine.

Want a more complete checkup?

Full Body Checkup with HbA1c & CBC

78 parameters, Required (8-12 hours)

Within 6 hours

₹1,499

Diabetes Care Package (HbA1c + Sugar + Lipid + Kidney)

14 parameters, Required (8–10 hours)

Same day / 24 hours

₹899

Full Body Checkup with Urine Test, HbA1c & CBC

102 parameters, Required (8-12 hours)

Within 6 hours

₹1,799
Compare all available packages

Related tests

Fasting Blood Sugar (FBS)

Required (8-12 hours)

Within 2 hours

₹97

Blood Sugar (PP)

No fasting

Same day / 24 hours

₹99

HbA1c (Glycosylated Haemoglobin)

No fasting

Same day / 24 hours

₹399

OGTT (Oral Glucose Tolerance Test)

Required (8–10 hours)

Same day / 24 hours

₹689

Insulin

Required (8–10 hours)

24–48 hours

₹999

C-Peptide

No fasting

Same day / 24 hours

₹1,599

Explore related tests and guides

Diabetes blood testsKidney health blood testsAnnual Health Checkup After 30Diabetes Monitoring Panel

Frequently asked questions

What is the full form of RFT?
RFT stands for renal function test. 'Renal' means related to the kidneys, so it is the same group of tests some labs call KFT, the kidney function test.
Which tests are included in an RFT?
Most RFTs include blood urea (or BUN), serum creatinine, uric acid, sodium, potassium and chloride, and many report eGFR. Some also add calcium, phosphorus, bicarbonate or protein. The exact list for this test is shown on the page.
What is the normal range for a kidney function test?
Typical adult values are urea 15 to 40 mg/dL, creatinine 0.7 to 1.3 mg/dL in men and 0.6 to 1.1 mg/dL in women, sodium 135 to 145 and potassium 3.5 to 5.1 mmol/L. An eGFR of 90 or more is normal.
Is fasting required for an RFT?
Usually not. Drink water as normal, since dehydration can raise urea and creatinine, and avoid a large meat meal or creatine supplements the day before.
What is the difference between RFT and LFT?
RFT checks the kidneys (urea, creatinine, electrolytes). LFT checks the liver (bilirubin, liver enzymes, proteins). They are often ordered together as part of a routine checkup.
How much does the Renal Function Test (RFT) cost?
The current online price is ₹599, with MRP ₹2,019. Review your booking total before payment.
Can I book this test for home collection?
Yes. Add your collection address and choose an available collection slot at checkout.
When is the report expected?
The catalogue lists Within 4 hours. Confirm the collection and report schedule with the booking team.
Can I book this with other tests?
You can add available tests to the same cart. Review the combined preparation instructions and collection requirements with the booking team.

Sources: KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of CKD; Tietz Textbook of Laboratory Medicine, 7th edition, 2022. General information, not medical advice.

This page gives catalogue facts only (sample, preparation, report time) and has not been reviewed by a doctor. It is general information, not a diagnosis or advice for you: your doctor decides which tests you need and what the results mean.

Book the RFT Test (Renal Function Test)

11 parameters · No fasting required · Report time: Within 4 hours

View booking benefits
₹599MRP ₹2,01970% off

Save ₹1,420

₹599

Test price