Kidney Function Test (KFT) in Delhi

What are the tests included in KFT? Completely Explained

Importantly, the kidney filters the blood and separates the waste products from the body as urine. Thus, it helps in maintaining pH balance and fluid balance in the body.

In the kidney function test, some basic components are measured to scan kidney function.

• Serum Creatinine Test: This is a blood test specially performed to evaluate the proliferation of creatinine in the body. Creatinine is a waste product formed from the breakdown of muscles. When there is higher storage of creatinine in the body, this can be assessed as a kidney problem.
• Blood Urea Nitrogen: The main purpose of this test is to check the waste product urea and the amount of nitrogen in the body's blood. Urea is the nitrogenous waste product of metabolism protein, and an excess of urea in the blood can cause diseases.
• Uric Acid Test: This test gives the value of uric acid in the blood. It is a waste product excreted from the body by the kidneys through urine. It is also essential for building blocks of DNA. The uric acid crystals can also accumulate in the kidney and contribute to the formation of kidney stones.
• Other parameters: Several mineral tests such as calcium, sodium, and chloride in the Kidney Function Test are optional parameters to indicate kidney problems like kidney stones.

Why get tested for Kidney function?

A Kidney Function Test is an important method doctors use to understand kidney health. It assists a doctor in diagnosing a health problem and treatment.

• To monitor the treatment effectiveness of kidney disease.
• To prevent the risk of developing kidney diseases.
• Part of the annual routine checkups for health.
• Diagnosis of disease affecting the kidneys.

When to get tested for KFT?

There are some common symptoms related to kidney disease that may affect the filtration system of your body.

Some common conditions in which KFT is recommended are-

• Hypertension: High blood pressure can affect your kidneys and can lead to kidney failure.
• Hematuria: Hematuria is blood in your urine that may have a severe issue relating to your kidneys.
• Difficulty in urination: Difficulty in passing out urine from the body may have signs of having kidney problems.
• Frequent urination: The continuation of urine generally occurs in high blood sugar levels. It can also be a sign of kidney problems.
• Edema: The swelling of your arm and legs because of extra fluid build-up in your body is a symptom of having kidney disease.

If you or anyone in your known is looking for an advanced yet reasonable price lab for a Kidney Function Test at home, Redcliffe Labs has got you covered. We offer Renal function test in Delhi at low prices and with the assurance of safety and quality of an advanced and well-equipped testing laboratory.

Along with reasonable KFT test costs in Delhi, we provide home sample collection service and send reports to your registered email Id or WhatsApp number within a stipulated time frame. Other than Kidney Function Test, we host 3500+ tests, including Liver Function Test, Smart Full Body Checkup, Vital Screening Package, and to name a few.

Who should get a KFT regularly — and how often?

A kidney check is worth building into your routine if you fall into a higher-risk group. You may benefit from testing more often if you:

• Live with diabetes or high blood pressure — the two most common causes of kidney damage in India.
• Have a family history of kidney disease.
• Are over 40, or already manage heart disease or obesity.
• Take painkillers (NSAIDs) frequently, or are on long-term medication that the kidneys have to process.
• Have had repeated urinary infections or kidney stones.

As a general guide, healthy adults can include a KFT in their yearly health check-up. If you are managing diabetes, hypertension or an existing kidney concern, your doctor may suggest testing every three to six months so any change is caught early. Always follow your doctor's advice for your own situation.

Simple ways to keep your kidneys healthy

Whatever your results turn out to be, a few everyday habits go a long way in protecting your kidneys:

• Stay well hydrated. Drinking enough water helps your kidneys flush out waste — though don't overdo it if your doctor has advised a fluid limit.
• Keep sugar and blood pressure in check. Controlling diabetes and hypertension is the single most important thing you can do for your kidneys.
• Go easy on salt and processed food. Too much sodium pushes up blood pressure and makes your kidneys work harder.
• Be careful with painkillers. Frequent, long-term use of NSAIDs can strain the kidneys — take them only as directed.
• Don't smoke, and keep moving. Regular activity and quitting smoking improve blood flow to your kidneys and lower your overall risk.

None of this replaces medical advice, but small, consistent choices genuinely add up over the years.

How can you prepare for the Kidney Function Test (KFT)?

Preparations for a standard KFT test are simple. Have a look below!

• Fasting instructions: No fasting is required. However, depending on your underlying medical conditions, your healthcare provider may suggest 8-12 hours of fasting before the test.
• Hydration: Keep your body hydrated to make blood draw easier, especially for a blood urea nitrogen (BUN) level test. This improves the accuracy of your test results.
• Medication: Inform your doctor about prescription medicines, vitamin supplements, and over-the-counter medicines you are taking to avoid interfering with the test results.
• Dietary Restrictions: Do not eat high-protein meals before the test to avoid any increase in BUN levels.
• Other Considerations: Avoid weight lifting or high-intensity interval training (HIIT) to not impact your KFT test results, including elevated creatinine levels.

What is the procedure for a kidney function test (KFT)?

The procedure for a kidney function test (KFT) usually takes less than 10 minutes and includes the following:

• Sample Collection: A lab technician will collect blood from a vein in your arm using a sterile needle. If needed, your healthcare provider may also suggest a urine sample collection to detect bacteria or yeast causing the infection.
• Labeling: The expert will transfer the blood into a vial or test tube, label it, and send it to the laboratory for analysis.
• Other considerations: The kidney function test (KFT) measures the creatinine, BUN, GFR (Glomerular Filtration Rate), and electrolytes like potassium and sodium. The urine tests may include an albumin-to-creatinine ratio or other specific evaluations. This is to screen for high albumin levels, known as albuminuria. Your healthcare provider may suggest this screening if he suspects you have a higher risk of kidney disease, including diabetes, high blood pressure, or a family history of kidney problems.

Note: The KFT test results are typically available the same day. Discuss your test results with your doctor for further analysis and guidance.

Normal values for Kidney Function Tests:

Increased and decreased values of some components indicate several health disorders related to the kidneys. Normal KFT Range is:

• Uric acid Adult Female: 2.4 to 6.0 mg/dl Adult Male: 3.4 to 7.0 mg/dl Children: 3 to 4 mg/dl
• Urea 2.5 - 7.5 mmol/L
• Creatinine Adult Male: 0.6 to 1.2 mg/dl Adult Female: 0.5 to 1.1 mg/dl
• BUN/Creatinine Ratio 12:1 to 20:1

Reference ranges may vary slightly by laboratory and method. Always interpret your results with your doctor.

How is the Kidney Function Test performed?

The KFT test needs a blood sample. During the test, Redcliffe Labs’ qualified phlebotomist will wrap an elastic band around the arm and cease the area by wiping alcohol. They then insert a small needle into the vein to pull out a sample of blood. The drawn blood is collected in a vial and sent to our advanced lab for analysis.

Abnormal results of KFT and their interpretations

Too much or too low levels of KFT indicate problems related to kidney diseases. It is always advisable to discuss the test reports with a healthcare professional to understand the condition better and take action accordingly.

• Serum Creatinine:

Increased levels: Severe kidney disease, muscle disease, diabetes, dehydration, heart problems, kidney failure, etc.

Decreased levels: Malnutrition, severe weight loss, severe muscle loss, chronic illnesses, liver disease

• Blood urea nitrogen levels:

Increased levels: Dehydration, urinary tract obstruction, congestive heart failure, etc.

Decreased levels: Liver disease, malnutrition, overhydration, low protein diet.

• Uric acid:

Increased levels: Hyperuricemia ( crystals of uric acid), kidney stones, and type 2 diabetes.

Decreased levels: Oxidative stress, endothelial dysfunction, a genetic disorder like Wilson disease, and Fanconi syndrome.

Making sense of your results — don't panic over one number

It's natural to feel anxious if a value on your report is marked high or low, but a single out-of-range result does not automatically mean kidney disease. Levels like creatinine and urea can shift for everyday reasons — dehydration, a protein-heavy meal the night before, a recent hard workout, or certain medicines. What really matters is the overall picture: how your numbers trend over time, your symptoms, and your other results read together. That is why it's always best to go through your KFT with your doctor, who can tell you whether a finding is truly significant or simply needs a repeat test.

Things to remember:

• KFT is a group of test measures for the functioning of the kidney.
• Get a test for KFT having symptoms like hypertension, diabetes, blood in the urine.
• KFT measures serum creatinine level, Uric Acid and Urea level, BUN level, etc.
• It is important to notify the doctor before having a KFT that you are currently taking any prescription or other medications.
• No fasting is usually required, though your doctor may occasionally advise 8–12 hours of fasting before a kidney function test.

Why book your KFT in Delhi with Redcliffe Labs?

Getting tested shouldn't be a chore. With Redcliffe Labs you can book a Kidney Function Test in Delhi in a couple of taps and have a trained phlebotomist come to your home at a time that suits you — no queues, no travelling, and no extra charge for the home visit. Your sample is processed in NABL-accredited, well-equipped labs, and your report reaches your email or WhatsApp the same day, so you are never left waiting or wondering.

It's diagnostics built around your day, not the other way round — reliable, affordable, and delivered to your doorstep across Delhi.

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