A 35-year-old member asked:
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what is the most likely cause of the patient's elevated urea nitrogen?

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Dr. James Lin
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Here are some...: Blood urea nitrogen reflects extrinsic nitrogen intake and blood concentration. Hence, the common causes for mild elevated BUN are dehydration and high-protein diet under assuming kidney works well. In addition, kidney failure or poor circulation like heart failure may cause BUN to rise. To know more how it may mean, testing blood for creatinine, BUN, BUN to Creatinine ratio has been the standard.
Answered on Jun 1, 2017

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A 32-year-old female asked:
Dr. Ed Friedlander
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Of course: And results are basically valid. BUN is unlikely to be much elevated in infused blood as it's taken from healthy folks.
A 39-year-old member asked:
Dr. Luis Villaplana
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Protein: Protein in diet needs lowered in most renal patients.
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A 45-year-old member asked:
Dr. Veeraish Chauhan
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Protein: Proteins are the main source of nitrogen in the diet.
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A 30-year-old member asked:
Dr. Alok Agrawal
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Yes: High protein or very high protein diets can cuse BUN to increase.

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