syndrome of inappropriate secretion of antidiuretic hormone

syn·drome of in·ap·pro·pri·ate se·cre·tion of an·ti·di·u·ret·ic hor·mone (SIADH),

continued secretion of antidiuretic hormone despite low serum osmolality and expanded extracellular volume.

syn·drome of in·ap·pro·pri·ate se·cre·tion of an·ti·di·u·ret·ic hor·mone

(SIADH) (sin'drōm in'ă-prō'prē-ăt sĕ-krē'shŭn an'tē-dī-yŭr-et'ik hōr'mōn) A condition in which ADH is in excess and causes water retention, hyponatremia, and extracellular fluid volume excess.

syn·drome of in·ap·pro·pri·ate se·cre·tion of an·ti·di·u·ret·ic hor·mone

(SIADH) (sin'drōm in'ă-prō'prē-ăt sĕ-krē'shŭn an'tē-dī-yŭr-et'ik hōr'mōn) Continued secretion of antidiuretic hormone despite low serum osmolality and expanded extracellular volume.