Types of kidney work tests


To test your kidney work, your doctor will order a set of tests that can estimate your glomerular filtration rate (GFR). Your GFR tells your doctor how rapidly your kidneys are clearing waste from your body.



A urinalysis screens for the presence of protein and blood in the urine. There are numerous possible reasons for protein in your urine, not which are all related to disease. Infection increases urine protein, however so does a heavy actual workout. Your doctor might need to repeat this test after a few weeks to see assuming the results are comparative.


Your doctor may likewise request that you provide a 24-hour urine collection sample. This can help doctors see how quick a waste item called creatinine is clearing from your body. Creatinine is a breakdown result of muscle tissue.


Serum creatinine test

This blood test examines whether creatinine is developing in your blood. The kidneys normally completely filter creatinine from the blood. A significant level of creatinine suggests a kidney problem.


As per the National Kidney Foundation (NKF), a creatinine level higher than 1.2 milligrams/deciliter (mg/dL) for women and 1.4 mg/dL for men is an indication of a kidney problem.


Blood urea nitrogen (BUN)

The blood urea nitrogen (BUN) test additionally checks for waste products in your blood. BUN tests measure how much nitrogen in the blood. Urea nitrogen is a breakdown result of protein.


However, not all elevated BUN tests are due to kidney damage. Normal medications, including large doses of aspirin and some types of anti-microbials, can likewise increase your BUN. It’s critical to tell your doctor about any medications or supplements that you take regularly. You might need to stop certain medications for a few days before the test.


A typical BUN level is between 7 and 20 mg/dL. A higher value could suggest several different health problems.


Estimated GFR

This test estimates how well your kidneys are filtering waste. The test determines the rate by checking out factors, for example,


  1. test results, specifically creatinine levels
  2. age
  3. gender
  4. race
  5. height
  6. weight

Any result lower than 60 milliliters/minute/1.73m2 might be an admonition indication of kidney disease.


How the tests are performed

Kidney work tests generally require a 24-hour urine sample and a blood test.


24-hour urine sample

A 24-hour urine sample is a creatinine clearance test. It gives your doctor an idea of how much creatinine your body expels over a single day.


On the day that you start the test, urinate into the toilet as you regularly would when you wake up.


For the rest of the constantly, urinate into a special container provided by your doctor. Keep the container capped and refrigerated during the collection process. Make sure to label the container clearly and to tell other family members why it’s in the refrigerator.


On the morning of the second day, urinate into the container when you get up. This completes the 24-hour collection process.


Follow your doctor’s instructions concerning where to drop the sample off. You might need to return it either to your doctor’s office or a research center.


Blood samples

BUN and serum creatinine tests require blood samples taken in a lab or doctor’s office.


The technician drawing the blood first ties an elastic band around your upper arm. This makes the veins stick out. The technician then cleans the area over the vein. They slip a hollow needle through your skin and into the vein. The blood will flow once more into a test tube that will be sent for investigation.


You might feel a sharp squeeze or prick when the needle enters your arm. The technician will place gauze and a bandage over the puncture site after the test. The area around the puncture might develop a bruise over the next few days. However, you shouldn’t feel severe or long haul pain. Do not close, at the end of this article we are going to show you  how to  protect your kidney and cure kidney problems from the comfort of your home READ MORE===>>


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