Kidney Failure Bun Levels. A gfr below 15 indicates that you need to start a treatment for kidney failure. Blood urea nitrogen bun.
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Healthcare professionals use bun tests for a variety of reasons including monitoring kidney and liver function. Urea is also a metabolic byproduct which can build up if kidney function is impaired. The bun to creatinine ratio generally provides more precise information about kidney function and its possible underlying cause compared with creatinine level alone.
Urea is also a metabolic byproduct which can build up if kidney function is impaired.
Blood urea nitrogen bun. Blood urea nitrogen or a bun test is ordered by a doctor especially in cases when he or she deduces that an individual has kidney disease. Your kidney disease specialist will speak to you about treatments for kidney failure such as dialysis or kidney transplant. So what exactly does a bun test measure and what does it mean if there is a high bun level.