What is the role of CBC count and serum chemistry in the workup for chronic kidney disease (CKD) in children?

Updated: Jul 21, 2020
  • Author: Sanjeev Gulati, MD, MBBS, DNB(Peds), DM, DNB(Neph), FIPN(Australia), FICN, FRCPC(Canada); Chief Editor: Craig B Langman, MD  more...
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Anemia is an important clinical finding in chronic kidney disease (CKD), and a complete blood cell (CBC) count is an important investigation both in the initial evaluation and the subsequent follow-up in these children. Anemia may indicate the chronic nature of the renal failure in the absence of any other obvious causes and may also be a clue to the underlying cardiovascular disease. [16]

Serum chemistry testing provides a valuable diagnostic tool both in the initial diagnosis and in the subsequent follow-up in these children. Blood urea nitrogen (BUN) and serum creatinine assessments are the most important tests. Estimation of the serum sodium, potassium, calcium, phosphorus, bicarbonate, alkaline phosphatase, parathyroid hormone (PTH), and cholesterol and fractionated lipid levels are important in the treatment and prevention of various chronic kidney disease–related complications.

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