The major systems that comprise our human body are finely regulated and maintained by a collection of hormone-secreting glands. The proper functioning of each component of the endocrine system is essential to contributing to the system of checks and balances that maintains internal equilibrium. Antidiuretic Hormone (ADH) is a hormone that is used to help control the fluid balance of the body. The release of ADH is initiated when the body recognizes a low circulating blood volume and causes an increase in water absorption. Syndrome of Inappropriate Antidiuretic Hormone (SIADH) is a condition in which the body has an increased response to ADH or an excessive amount of ADH is secreted. In this course, you will learn about SIADH and nursing care for those with SIADH.