Kidneys are the organs responsible for filtering the blood and removing wastes from the body. They are located in the abdomen, on either side of the spine. The left kidney is usually slightly larger than the right one. When the blood flow to the kidneys is obstructed, or when the kidneys are not able to function properly, waste products and fluid can build up in the body. This can lead to kidney failure.
Kidney function tests (KFTs) are done to measure how well the kidneys are working. A KFT or a renal function test may be done to diagnose a kidney disorder, monitor the progression of kidney diseases, or check for side effects of certain medications. RTF usually involves taking a blood sample and/or a urine sample. The results of KFTs can help doctors determine whether the kidneys are functioning properly and identify any problems that may be present.
This blog post will provide an overview of KFTs, including what they are, why they are done, what the results may mean, and the KFT test price. We will also discuss the potential risks and side effects associated with KFTs.
What is a Kidney Function Test?
If you have been ordered to have a KFT, it is important to understand what the test is and why it is being done. Kidney function tests are important tools that can help your doctor diagnose or monitor kidney disorders. Please note that KFTs are generally safe procedures with few risks or side effects.
The KFT test price will depend on a number of factors, including the type of KFT being done, the reason for the test, and your insurance coverage. In most cases, KFTs are covered by insurance. However, you may be responsible for a copay or deductible. Be sure to check with your insurance provider to determine your financial responsibility prior to having the test.
Symptoms of Kidney Problems
There are many different types of kidney disorders, and each one can cause a variety of symptoms. Some common symptoms of kidney problems include:
- Swelling in the ankles, feet, or legs
- Abdominal pain
- Back pain
- Difficulty urinating
- Changes in urine color or output
- Blood in the urine
- Foamy or bubbly urine
If you are experiencing any of these symptoms, it is important to see your doctor as soon as possible. Kidney problems can often be managed effectively when they are caught early. Waiting to see a doctor can allow the condition to progress and become more difficult to treat.
Types of Kidney Function Tests
There are three main types of KFTs, each with its own set of benefits and risks:
- Blood urea nitrogen (BUN): A BUN test measures the level of nitrogen in your blood. This test is often used to determine how well your kidneys are working.
- Creatinine: A Creatinine test measures the creatinine level of your blood. Creatinine is a waste product that is produced by the muscles and filtered out by the kidneys. This test can be used to determine how well your kidneys are functioning.
- Glomerular filtration rate (GFR): A eGFR test measures how much blood is being filtered by the kidneys each minute. This test can be used to determine if there is damage to the kidney’s filtering system or if there is a blockage in the renal arteries or veins.
Your doctor will decide which KFT is right for you based on your symptoms and medical history.
KFTs are generally safe procedures with few risks or side effects. However, as with any medical procedure, there is always a small chance of complications. Be sure to talk to your doctor about any concerns that you may have prior to having the test.
How are the tests Performed?
All KFTs require a blood sample and/or a urine sample. The specific procedure will depend on the type of KFT being done.
- BUN: A BUN test requires a blood sample. A needle will be inserted into a vein in your arm, and the necessary amount of blood will be drawn to determine the level of nitrogen in your blood.