TY - CHAP M1 - Book, Section TI - Chapter 5. Therapeutic Approach to the Hypotensive Patient A1 - Gough, John E. A2 - Cline, David M. A2 - Ma, O. John A2 - Cydulka, Rita K. A2 - Meckler, Garth D. A2 - Handel, Daniel A. A2 - Thomas, Stephen H. PY - 2012 T2 - Tintinalli's Emergency Medicine Manual, 7e AB - Shock is circulatory insufficiency that creates an imbalance between tissue oxygen supply (delivery) and oxygen demand (consumption). Such tissue hypoperfusion is associated with decreased venous oxygen content and metabolic acidosis (lactic acidosis). Shock is classified into four categories based on etiology: (a) hypovolemic, (b) cardiogenic, (c) distributive (eg, neurogenic and anaphylactic), and (d) obstructive. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/18 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=56271467 ER -