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Kidney Function Test

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Kidney function test

What is a kidney function test?

Kidneys play a vital role in the body by acting as a built-in detoxifier. A nephrologist may recommend a kidney function test to assess your kidneys’ ability to remove waste. A blood test for kidney function is also referred to as a renal function test, as ‘renal’ in medical terminology means kidneys. These constitute of blood and urine tests, such as creatinine blood test, serum calcium test, BUN blood test, uric acid blood test, and more. A kidney function test is usually prescribed by a nephrologist if:

  1. You show symptoms of declining kidney performance
  2. You have medical conditions that can increase your risk of developing kidney diseases

What kidney function tests are included in the package?

The kidney function test package provided by MedKare includes the following tests:

  1. Blood urea nitrogen test: Blood urea nitrogen (BUN) is a waste product that your liver produces into the blood after breaking down the proteins in the food. Healthy kidneys will be able to process and excrete it out of your system effectively. If your kidneys are not working properly, high amounts of BUN will be accumulated in the blood. The blood urea nitrogen test or BUN blood test measures the amount of BUN in your blood.
  2. Creatinine test: Similar to BUN, creatinine is a waste product in the blood that is filtered by the kidneys and sent out as urine. If your kidneys are not working properly, high amounts of creatinine will be accumulated in the blood. The creatinine blood test measures the amount of creatinine in your blood.
  3. BUN/ creatinine ratio test: A BUN blood test and creatinine blood test are useful in assessing your kidney’s performance on their own. However, nephrologists  use the combined results of both tests to gain a much better understanding of your kidney health and suggest appropriate kidney treatments, if required.
  4. Serum calcium test: A serum calcium test is performed to monitor the amount of calcium in your blood. Nephrologists  will recommend taking this test as a part of your routine screening, as this test screens for abnormalities in your kidneys, bones, heart, and other organs.
  5. Uric acid test: As the name suggests, a uric acid test measures the amount of uric acid in your blood or urine. The two types of uric acid tests are:
    1. Uric acid blood test: This test measures the uric acid levels in your blood.
    2. Uric acid urine test: This test measures the uric acid levels in your urine.

Your body produces uric acid after breaking down purines – a substance found in your blood cells. If you have abnormal levels of uric acid in your blood, this may be a sign of underlying kidney issues.

Why do I need a kidney function test?

Kidneys filter out the waste materials in the blood and excrete out of the body as urine. Also, they regulate the water levels in your body and play a key role in producing vitamin D , red blood cells, and hormones that regulate blood pressure.
nephrologist may recommend you take a renal function test if you show the following symptoms:

Why should you take a fasting blood sugar test?

Brown or bloody urine
-Difficulty urinating
Infrequent urination
Swelling due to accumulation of body fluids
Severe pain or cramps
Excessive fatigue
Shortness of breath
-Abnormal sleep schedule
-Itchy skin
Low appetite

nephrologist may also recommend you take a renal function test if you have medical conditions that can increase your risk of developing kidney diseases. The medical conditions include:

  1. Diabetes
  2. High cholesterol
  3. Hypertension
  4. Obesity
  5. Detrimental lifestyle factors, such as excessive smoking , and alcohol intake
  6. Abnormal kidney structure
  7. Family history of kidney abnormalities

What happens during a kidney function test?

The kidney function test package includes collecting urine samples and blood samples.

During a urine test:

For the urine tests, you will need to collect all the urine your body produces in 24 hours. 24-hour urine samples can accurately measure the amount of waste products (creatinine, blood urea nitrogen, uric acid) expelled out of your body in a stipulated time. A laboratory professional will instruct you on how to collect and store the urine samples. General instructions include:

  1. On the day you start the 24-hour urine test, urinate into the toilet in the morning once you wake up and keep a note of the time.
  2. For the next 24 hours, collect all the urine in the containers provided to you.
  3. Once collected, store them in a refrigerator/ cooler. Ensure the containers are closed tightly and labelled.
  4. After 24 hours, the lab professional will collect your urine samples and send them for analysis.

During a blood test:

For the blood test, your blood sample will be collected through a needle injected into the vein of your arm. Unlike the 24-hour urine tests, a blood test for kidney function gets over in just 5 minutes. Once your blood is drawn, the sample is sent for a thorough analysis.

You will receive the kidney function test results within 24-72 hours. Your samples will be analyzed by trained lab professionals using the latest medical technology. After receiving your medical reports, you can avail of your free consultation with a nephrologist who will recommend kidney treatment, if required.

How do I book a kidney function test online?

Due to the COVID-19 pandemic, we understand the need for safe at-home medical services. With Medkare , you can book an appointment online for a kidney function test at home and get your tests done conveniently. A laboratory professional will collect your samples and send them for accurate analysis by top medical professionals. Your at-home kidney function test results will be uploaded onto your MedKare profile. After receiving your results, you can consult with the best nephrologists through instant chat or video call from the comfort of your home.

Frequently Asked Questions:

You may need to take a renal function test if you show the following symptoms:

  1. Brown or bloody urine
  2. Difficulty urinating
  3. Infrequent urination
  4. Swelling due to accumulation of body fluids
  5. Severe pain or cramps
  6. Excessive fatigue
  7. Shortness of breath
  8. Abnormal sleep schedule
  9. Itchy skin

A nephrologist may also recommend you take a renal function test if you have medical conditions that can increase your risk of developing kidney diseases. The medical conditions include:

  1. Chronic diseases, like diabetes, high cholesterol, hypertension,obesity
  2. Detrimental lifestyle factors, such as excessive smoking , and alcohol intake
  3. Family history of kidney abnormalities

Nephrologists in Bengaluru recommend that you fast for 8-12 hours before taking the kidney function test at home. Nutrition in foods can interfere with the analysis and skew your results. Ensure you only consume water during the fasting period. It is ideal to fast through the night and start your test when you wake up the next day.

You will receive the kidney function test results within 24-72 hours. Lab professionals in Bengaluru will analyze your samples using the latest medical technology. 

After receiving your results, you can avail of your free consultation with the best nephrologists in Bengaluru through instant chat or video call from the comfort of your home. The doctor will provide you with a personalized prescription and will recommend suitable kidney treatment if required.

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MedKare is a holistic healthcare company that aims to make healthcare accessible and affordable in the country. In order to streamline the functioning of the health industry, we have brought doctors, pharmacists, phlebotomists and consumers under one digital ambit. This will save you from the burden of waiting in long queues, riding to a medical store or visiting a doctor.

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