What is the role of critical sampling in the diagnosis of pediatric hypoglycemia?

Updated: Sep 12, 2019
  • Author: Robert P Hoffman, MD; Chief Editor: Sasigarn A Bowden, MD  more...
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The ability to properly sort through the differential diagnoses of hypoglycemia depends on obtaining the critical sample at the time of hypoglycemia. This sample is used to measure the various metabolic precursors and hormones involved in glucose counterregulation, including glucose, insulin, growth hormone, cortisol, lactate, pyruvate, beta-hydroxybutyrate, free fatty acid, carnitine, branched-chain amino acid, and insulinlike growth factor-binding protein-1 (IGFBP-1) levels. (A urine sample for organic acid analysis is also critical.)

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