![]() ![]() Higher than normal urea values alone don't indicate kidney failure. What level of urea indicates kidney failure? Note that the age-wise blood urea normal range can vary slightly based on the specific reference values used by different laboratories. Infants usually have a lower range, around 5 to 18 mg/dL, while older adults may have a slightly higher range. The normal range of blood urea typically falls between 7 to 20 milligrams per deciliter (mg/dL). What is a normal blood urea nitrogen level? The BUN test is used for identifying acute kidney injury, chronic kidney disease, and various urinary tract issues. It's also valuable in conditions such as heart failure, liver disease, or gastrointestinal bleeding, as it helps evaluate the efficiency of kidneys. It is also used in the case of patients with low BUN level symptoms such as weakness, dizziness, and muscle cramps. This can include frequent urination, swelling in your hands or feet, unexplained fatigue, high blood pressure, diabetes, or suspected kidney disease. Doctors recommend a blood urea nitrogen test based on various symptoms or risk factors associated with abnormal kidney function. The blood urea nitrogen test is instrumental in diagnosing, monitoring, and managing a spectrum of kidney-related and systemic health conditions. The blood urea nitrogen test is often part of routine health check-ups and can aid in the early detection of kidney issues such as glomerulonephritis, pyelonephritis and others. During the test, the BUN level is measured in milligrams of nitrogen per deciliter of blood. The BUN test helps evaluate how efficiently your kidneys are filtering waste products from your body. It is produced in the liver, and transported in the bloodstream to the kidneys, where it's filtered out and eventually eliminated from your body in the form of urine. Urea nitrogen is a byproduct of protein breakdown from the food you consume. The blood urea nitrogen (BUN) test is an important diagnostic method that provides insights into your kidney function and overall health. ![]()
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