Blood Urea Nitrogen
What Affects the Test
Reasons you may not be able to
have the test or why the results may not be helpful include:
Taking medicines, such as
amphotericin B (such
as Fungizone), nafcillin, aminoglycosides, kanamycin (Kantrex), tobramycin
corticosteroids, tetracycline antibiotics, and, rarely,
the antibiotic chloramphenicol ( Chloromycetin). Taking
diuretics, which can cause
What To Think About
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier. Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Fischbach FT, Dunning MB III, eds. (2009).
Manual of Laboratory and Diagnostic Tests, 8th ed.
Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.
Primary Medical Reviewer
E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer
Michael Mallea, MD - Nephrology
Current as of
August 9, 2012
WebMD Medical Reference from Healthwise
August 09, 2012
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this
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