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Commentaries |
Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL.
aAddress correspondence to this author at: Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610. E-mail ghortin@pathology.ufl.edu.
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This case illustrates that initial laboratory results suggestive of SIADH do not rule out other potential causes of hyponatremia, such as hypothyroidism and hypocortisolism. To date, SIADH has been a diagnosis of exclusion, but advances in mass spectrometry offer prospects for accurately measuring ADH in the future.
When analyzers yield low sodium values, an initial priority is to exclude factitious hyponatremia. When sodium is measured by
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