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Blood Urea Nitrogen

What is Blood Urea Nitrogen?

Blood Urea Nitrogen, commonly abbreviated as BUN, is a medical test that measures the amount of urea nitrogen present in the blood. Urea is a waste product formed in the liver when the body breaks down proteins. The kidneys then filter the blood, removing urea and excreting it through the urine. BUN is a significant indicator of kidney function and health. A BUN test is commonly used to evaluate the efficiency of the kidneys in filtering waste, and it can help in diagnosing kidney diseases, or monitoring patients with chronic kidney conditions.

  • Test Name Blood Urea Nitrogen, BUN - Serum
  • Sample Type Serum
  • Preparations Required It is recommended to fast for 8-12 hours prior to the test, but make sure to stay well-hydrated. Inform your doctor of any medications you are taking.
  • Report Time 4 hours

Blood Urea Nitrogen Normal Range

The levels of Blood Urea Nitrogen can vary based on numerous factors, including diet, medications, and underlying health condition. Normal BUN levels typically range from about 7 to 20 milligrams per deciliter (mg/dL), but normal ranges can vary depending on the laboratory that analyzes the blood sample. BUN test is often part of a routine blood test panel, and it can be prescribed alongside other tests such as creatinine, for a more comprehensive evaluation of kidney function.

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Frequently Asked Questions

The Blood Urea Nitrogen test is vital as it helps in evaluating kidney function. It can aid in diagnosing kidney diseases and is often used to monitor the condition of patients with chronic kidney disease or those undergoing dialysis.

The Blood Urea Nitrogen test involves taking a blood sample, usually from a vein in the arm. The blood is then sent to a laboratory where the concentration of urea nitrogen is measured in the serum.

Blood Urea Nitrogen normal levels typically range from about 7 to 20 milligrams per deciliter (mg/dL), but normal ranges can vary depending on the laboratory that analyzes the blood sample.

High BUN levels can indicate that the kidneys are not functioning properly or that there is a condition causing increased breakdown of proteins in the body. Dehydration, high protein diets, and certain medications can also elevate BUN levels.

Low BUN levels can be seen in liver disease, malnutrition, or conditions that result in decreased protein breakdown. Overhydration can also lead to low BUN levels.

BUN (Blood Urea Nitrogen) levels over 20 mg/dL may suggest kidney issues, but diagnosing kidney failure requires a more thorough assessment than just looking at BUN levels.

The frequency of BUN testing depends on your health status and any underlying conditions. Your doctor will advise on how often you should have the test based on your specific situation.

The BUN test is a standard blood test and has minimal risks, similar to those associated with a regular blood draw, such as bruising or infection at the needle site.

Yes, certain medications can affect BUN levels. It is important to inform your doctor of all medications you are taking, as they may ask you to stop certain medications before the test.

Yes, a high-protein diet can cause elevated BUN levels, while a low-protein diet can result in lower BUN levels. Staying well-hydrated can also impact BUN levels.

Both Blood Urea Nitrogen and creatinine are waste products in the blood, but while BUN is produced during the breakdown of proteins, creatinine is produced by the muscles. Creatinine levels are more stable and are usually used together with BUN to evaluate kidney function.

If your Blood Urea Nitrogen levels are abnormal, it is important to consult your doctor for interpretation and advice. Your doctor may recommend additional tests or adjustments in medications or diet.

The Price of Blood Urea Nitrogen(BUN) Test is ₹220. Sprint Diagnostics provides affordable lab tests at your nearest locations in Hyderabad.

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