James Schaller, MD and the evaluation of SIADH and sodium
A 40-point SIADH work-up, emphasizing all major laboratory tests, urine studies, endocrine testing, medication review, and imaging used to establish SIADH and search for its cause. A key point: SIADH is a diagnosis of exclusion. The basic pattern is hypotonic hyponatremia, inappropriately concentrated urine, usually urine sodium >30 mmol/L with normal salt intake, clinical euvolemia, and exclusion of adrenal […]
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