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Neonatal endocrine labomas - pitfalls and challenges in reporting neonatal hormonal reports

  • Rational Diagnostics
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Abstract

This review highlights pitfalls and challenges in interpreting neonatal hormone reports. Pre-analytical errors contribute to nearly 50% of all errors. Modern chemiluminescence assay are more accurate, have lower risk of Hook’s effect, but continue to have problems of assay interference. Liquid chromatography mass spectroscopy is gold standard for most hormone assays. Neonatal hypoglycemia diagnostic cut-offs are lower than adults. Random growth hormone testing is of value in diagnosing growth hormone deficiency in neonates. 17-hydroxy-progesterone testing in first three days of life for congenital adrenal hyperplasia (CAH) remains a challenge due to crossreactivity with maternal circulating steroids, prematurity and lack of adrenal maturation. Both T4 and TSH testing is encouraged after 48 hours of delivery for diagnosing neonatal hypothyroidism; repeat testing should be done immediately for confirmation of diagnosis. There is an urgent need to develop age- sex- and ethnicity-based normative data for different hormone parameters in neonates. Laboratory should develop their own neonatal references and avoid using ranges from manufacturers. In neonatal endocrinopathies, the clinical scenario should primarily dictate the treatment formulation with hormonal assay to supplement treatment.

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Correspondence to Deep Dutta.

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Chittawar, S., Dutta, D., Khandelwal, D. et al. Neonatal endocrine labomas - pitfalls and challenges in reporting neonatal hormonal reports. Indian Pediatr 54, 757–762 (2017). https://doi.org/10.1007/s13312-017-1170-7

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  • DOI: https://doi.org/10.1007/s13312-017-1170-7

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