Ch. 17 focuses on fluid, electrolyte, and acid-base imbalances, crucial components for maintaining homeostasis. It details the composition of body fluids, how they move between compartments, and the various mechanisms that regulate fluid and electrolyte balance, including the hypothalamic-pituitary, renal, adrenal, cardiac, and gastrointestinal systems. The text thoroughly explains the causes, manifestations, and management of imbalances in extracellular fluid volume (deficit and excess) and specific electrolytes like sodium, potassium, calcium, phosphate, and magnesium, along with different types of acid-base imbalances. It also discusses the use and management of intravenous fluid solutions and central venous access devices (CVADs) for treatment.