Oct 30, 2023 · What Is a Blood Urea Nitrogen Test? Doctors order a blood urea nitrogen (BUN) test to measure the amount of urea nitrogen in your blood. It helps them see how well your kidneys are working. A...

Nov 29, 2022 · The blood urea nitrogen (BUN) test measures how much urea nitrogen is in your blood. BUN levels vary. High levels may indicate kidney damage.

Aug 5, 2023 · A common blood test, the blood urea nitrogen (BUN) test reveals important information about how well your kidneys are working. A BUN test measures the amount of urea nitrogen that's in your blood. Here's how your body typically forms and gets rid of urea nitrogen:

Sep 12, 2024 · High BUN levels are an important indicator of kidney function and overall metabolic health. Elevated BUN can arise from various causes, including renal conditions like chronic kidney disease and acute kidney injury and non-renal factors such as dehydration, high protein intake, and heart failure.

Blood urea nitrogen (BUN) is one of the parameters used to ascertain kidney function. There is no definite value of BUN that would diagnose kidney failure. The normal range of blood urea nitrogen (BUN) is between 7 and 20 mg/dL or 2.5 and 7.1 mmol/L. …

Sep 29, 2018 · A BUN test is a quick and simple blood test commonly used to evaluate kidney function. Abnormally high or low BUN levels don’t necessarily mean you have problems with kidney function.

Apr 1, 2025 · Blood urea nitrogen (BUN) is a product of protein metabolism that gets excreted in the urine. BUN levels are often tested as a measure of kidney function and can help to determine the cause of renal failure when used to obtain the BUN to creatinine ratio.

Oct 31, 2024 · Blood urea nitrogen (BUN) is a blood test performed as a marker of kidney function. It is part of the basic or comprehensive metabolic panel done for health screening. It is also used to monitor the progression of kidney failure. BUN is produced by the breakdown of protein and usually cleared from the blood by the kidneys.

While blood urea and blood urea nitrogen are related and often used interchangeably, there are some important differences between the two: Blood urea measures the total amount of urea in the blood, including both the nitrogen and non-nitrogen components, while BUN specifically measures the nitrogen component of urea.

Blood urea nitrogen (BUN) is a medical test that measures the amount of urea nitrogen found in blood. The liver produces urea in the urea cycle as a waste product of the digestion of protein. Normal human adult blood should contain 7 to 18 mg/dL (0.388 to 1 mmol/L) of urea nitrogen. [1] .