TY - CHAP M1 - Book, Section TI - Hyponatremia A1 - Arora, Nayan A1 - Jefferson, J. Ashley A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. PY - 2021 T2 - Current Medical Diagnosis & Treatment 2021 AB - ESSENTIALS OF DIAGNOSISMust know volume status as well as serum and urine osmolality to determine etiology.Hyponatremia usually reflects excess water retention rather than sodium deficiency. The serum sodium concentration is not a measure of total body sodium.The administration of hypotonic fluids commonly cause hyponatremia in hospitalized patients. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2023/02/04 UR - accessmedicine.mhmedical.com/content.aspx?aid=1175779585 ER -