What is the role of lab studies in the workup of azotemia?

Updated: Sep 19, 2018
  • Author: Moro O Salifu, MD, MPH, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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For the initial evaluation, obtain a complete blood count (CBC), a biochemical profile, urinalysis, and urine electrolyte concentrations. In addition to establishing the presence of systemic disease, these tests may reveal clues to the origin of the azotemia. Diagnostic indices are commonly used to differentiate prerenal azotemia from intrarenal or postrenal azotemia (see in the image below).

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