Chapter 19 - Chapter 19: Hemorrhage & Shock Hemorrhage- an...

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Chapter 19: Hemorrhage - an abnormal internal or external discharge of blood. Shock - a state of inadequate tissue perfusion. Homeostasis - the natural tendency of the body to maintain a steady and normal internal environment. Types of Hemorrhage Capillary Venous Arterial Clotting - the body’s 3-step response to stop the loss of blood. 1. Vascular phase - step in the clotting process in which smooth blood vessel muscle contracts, reducing the vessel muscle contracts, reducing the vessel lumen and the flow of blood through it. 2. Platelet phase - second step in the clotting process in which platelets adhere to blood vessel walls and to blood vessel walls and to each other. Aggregate - to cluster or come together. 3. Coagulation - the third step in the clotting process, which involves the formation of a protein called fibrin that forms a network around a wound to stop bleeding, ward off infection, and lay a foundation for healing and repair of the wound. Fibrin - protein fibers that trap red blood cells as part of the clotting process. Factors Hindering the Clotting Process Movement of the wound site Aggressive fluid therapy Low body temperature Medications such as aspirin, heparin, or Coumadin Types of Blood Vessel injury Lateral (Transverse) cut- permits the vessel to retract and thicken its walls (flexion of Vessel sphincters) and control blood loss. Longitudinal cut- a cut that is along the length of a vessel that causes the vessel to open and allows for uncontrolled bleeding. Hemorrhage Control
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This note was uploaded on 10/13/2011 for the course PARAMEDIC 101 taught by Professor Bator during the Spring '11 term at Columbus State Community College.

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Chapter 19 - Chapter 19: Hemorrhage & Shock Hemorrhage- an...

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