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By Mayo Clinic staffDuring the BUN test, a member of your health care team takes a sample of blood by inserting a needle into a vein in your arm. The blood sample is sent to a lab for analysis. You can return to your usual activities immediately.
References
- Blood urea nitrogen. In: Nicoll D, et al. Pocket Guide to Diagnostic Tests. 5th ed. New York, N.Y.: McGraw-Hill Companies; 2008. http://www.accessmedicine.com/popup.aspx?aID=3135548. Accessed Nov. 24, 2010.
- The kidneys and how they work. National Kidney and Urologic Diseases Information Clearinghouse. http://kidney.niddk.nih.gov/kudiseases/pubs/yourkidneys/index.htm#rate. Accessed Nov. 24, 2010.
- BUN. Lab Tests Online. http://labtestsonline.org/understanding/analytes/bun/test.html. Accessed Nov. 24, 2010.
- Stevens L, et al. Assessment of kidney function: Serum creatinine; BUN; and GFR. http://www.uptodate.com/home/index.html. Accessed Nov. 24, 2010.
- Palevsky PM. Dialysis modality and dosing strategy in acute renal failure. Seminars in Dialysis. 2006;19:165.
- Post TW, et al. Diagnostic approach to the patient with acute or chronic kidney disease. http://www.uptodate.com/home/index.html. Accessed Nov. 24, 2010.
- Laboratory reference values. Urea nitrogen (BUN). Rochester, Minn.: Mayo Foundation for Medical Education and Research; Nov. 2010.
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