What is the role of complete blood count (CBC) in the diagnosis of nephrolithiasis?

Updated: Jun 21, 2018
  • Author: Chirag N Dave, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

Whereas mild leukocytosis often accompanies a renal colic attack, a high index of suspicion for a possible renal or systemic infection should accompany any serum WBC count of 15,000/µL or higher in a patient presenting with an apparent acute kidney stone attack, even if afebrile. A depressed RBC count suggests a chronic disease state or severe ongoing hematuria.


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