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Types of kidney function analysis and discovered diseases ... Know the details

The kidneys play many vital roles in maintaining your health, and one of its most important functions is to filter waste products from the blood and expel them from the body in the form of urine, and they also help the kidneys control water levels and various essential minerals in the body. In addition, they are necessary for the production of vitamin D, and red blood cells. Hormones that regulate blood pressure, according to a report by HEALTHLINE.

You may need kidney function tests. These are simple blood and urine tests that can identify kidney problems, and you may also need a kidney function test if you have other conditions that could harm the kidneys, such as diabetes or high blood pressure. They can help doctors monitor these conditions.

Symptoms of kidney problems

Symptoms that may indicate a kidney problem include:

high blood pressure.

Blood in urine

Urge to urinate frequently.

Difficulty starting urination.

Painful urination

Swollen hands and feet due to fluid accumulation in the body.

A symptom may not mean anything serious however, when they occur simultaneously, these symptoms indicate that your kidneys are not working properly Kidney function tests can help determine the cause.

Types of kidney function tests

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


A urinalysis checks the presence of protein and blood in the urine, there are many possible reasons for protein in the urine, and not all of them are related to diseases. The infection increases urine protein, as well as strenuous physical exercises. Your doctor may want to repeat this test after a few weeks to see if the results are similar. .

Your doctor may also ask you to provide a sample of urine over a 24-hour period.This can help doctors know how quickly a waste product called creatinine is eliminated from your body. Creatinine is a product of the breakdown of muscle tissue.

Serum creatinine test

This blood test checks if creatinine builds up in your blood Usually the kidneys are filtering all of the creatinine from the blood An elevated creatinine level indicates a problem with the kidneys.

According to the National Kidney Foundation (NKF), a creatinine level higher than 1.2 mg / dL (mg / dL) for women and 1.4 mg / dL for men is a sign of a kidney problem.

Blood urea nitrogen (BUN)

The blood urea nitrogen (BUN) test also checks for waste in the blood. BUN tests measure the amount of nitrogen in the blood. Urea nitrogen is a protein breakdown product, but not all elevated BUN tests are caused by kidney damage. Common medications, including large doses of Aspirin and some types of antibiotics, to increase your blood sugar level It is important to tell your doctor about any medications or supplements you take regularly. You may need to stop some medications for a few days before the test.

A normal BUN level is between 7 and 20 mg / dL A higher value can indicate many different health problems.