they leave more BUN behind. The BUN blood test measures the amount of urea nitrogen in your blood. If your levels are outside the normal range, this might mean either your liver orkidneysare not working well.
this range is not universal. Labs can use different methods to measure BUN or report BUN in different units, and what constitutes a normal result can vary from lab to lab.
Elevation of blood urea nitrogen is predictive of long-term mortality in critically ill patients independent of normal creatinine. Crit Care Med. 2011;39(2):305–13. https://doi.org/10.1097/CCM.0b013e3181ffe22a. Article CAS PubMed PubMed Central Google Scholar Chan, L., Chaudhary, K....
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. The American Board of Internal Medicine lists a typical reference range for BUN as eight to 20 mg/dL. However, this range is not universal. Labs can use different methods to measure BUN or report BUN in different units, and what constitutes a normal result can vary from lab to lab....