Diagnostic Approach and Interpretation of Hyponatremia

This chapter thoroughly examines the diagnostic approach for hyponatremia, emphasizing the assessment of serum osmolality and factors like glucose levels, mannitol receipt, protein, and triglyceride levels. It also delves into understanding the underlying causes of hyponatremia, distinguishing between ADH-dependent and ADH-independent conditions, and discussing the interpretation of urine studies with a focus on urine osmolality and urine sodium in assessing ADH and effective circulating volume.