Which conditions should be included in the differential diagnoses of azotemia?

Updated: Sep 19, 2018
  • Author: Moro O Salifu, MD, MPH, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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In addition to the conditions listed in the differential diagnosis, causes of elevated BUN or creatinine levels that are unrelated to kidney function should be considered, such as the following:

  • Gastrointestinal hemorrhage

  • Large protein meal

  • Total parenteral nutrition

  • Steroids

  • Ketoacidosis

Therapy with medications such as trimethoprim, cimetidine, cefoxitin, and flucytosine should be considered; these agents impair creatinine excretion.

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