They’re commonly tested using BUN, (blood urea nitrogen), which is a kidney function measurement. Kidney function is assessed by measuring creatinine levels. Because the kidneys are in charge of removing creatinine from blood, if your renal function deteriorates, your blood creatinine levels will rise. CreatinineĬreatinine is a waste product produced by normal muscle wear and tear in your blood. A decreased BUN value might also be caused by liver illness. Internal bleeding (haemorrhage), traumas, and glucocorticoid therapy can all cause an elevation in BUN. If we consume a low-protein diet, our BUN levels may be low, but if we eat a high-protein diet, our BUN levels may rise. This is due to the fact that BUN levels can fluctuate regardless of renal function. However, compared to the creatinine clearance and glomerular filtration rate (GFR), it is a less specific predictor of impaired kidney function. When the blood urea nitrogen levels are not in the range of normal BUN levels, then it is considered as abnormal BUN levels.Īn increase in BUN might be caused by a loss in renal function due to disease or kidney injury. Adults over the age of 60 have higher levels than young adults. BUN levels in the toddlers are approximately 66 percent of those in a healthy adult. In general, BUN levels rise as people get older. A result of more than 50 mg/dL shows the presence of an underlying medical condition.īUN levels vary by gender and age, as well as during pregnancy. The typical range for blood urea nitrogen levels is 7 to 22 mg/dL. As a result, maintaining normal blood urea nitrogen levels is critical. When the liver or kidneys are damaged, the BUN levels rise. Under normal circumstances, the kidneys filter urea nitrogen, which is then excreted in the urine. The waste product of breakdown of proteins in the liver is urea nitrogen. It determines the amount of urea nitrogen in the blood. Each laboratory which analyzes these values could have somewhat different ranges, but it’s not something We want you to worry about right now.Ī blood urea nitrogen (BUN) test is used to detect how well your kidneys are working. The ammonia is subsequently changed to urea in the liver, which then travels through the bloodstream to the kidneys, in which it is expelled as a waste product in urine.Īs a result, blood tests can be used to assess the BUN level, or the blood urea nitrogen, in our body, which is a key sign of liver and, more importantly, kidney health.īUN levels in the blood is varies from 8 to 18 milligrammes per deciliter. BUN (Blood Urea Nitrogen)Ī chemical called ammonia is produced if proteins are digested by our body. BUN levels can be raised by conditions like heart failure, shock, a high-protein diet, and gastrointestinal bleeding. As the glomerular filtration rate (GFR) declines owing to sick or injured kidneys, BUN builds up in the blood. The liver produces urea, which is then transported by that of the blood to kidneys for elimination. This is one of the oldest heart failure prognostic indicators. The serum consequence of protein metabolism is blood urea nitrogen (BUN).
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