A patient has developed a fluid imbalance secondary to MDMA use which has resulted in a condition called Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) 1) On A concept map, start at the ingestion of MDMA and map out the influence this drug has on the brain to initiate Syndrome of Inappropriate Antidiuretic Hormone 2) Look up SIADH and provide a definition on your concept map 3) Find out all that you can about the following and use this information to map the disease process of SIADH a. The function and homeostatic pathway of antidiuretic hormone b. The pathophysiology of SIADH c. The pathophysiology of SIADH and process of the fluid/electrolyte imbalance 4) Illustrate how SIADH leads to the fluid/electrolyte imbalance that you identified and how it is expected the fluid will shift within the body 5) Illustrate how this acute and rapid fluid shift effects brain cells