Shock/Bleeding Review Flashcards
a condition in which the circulatory system fails to provide sufficient circulation to maintain normal cellular functions.
shock
another term for shock
hypoperfusion
define perfusion
the flow of blood through body tissues and vessels; delivery of oxygen and removal of toxic waste.
the perfusion triangle consists of…
a pump (the heart), set of pipes (blood vessels/arteries), and contents (blood)
causes of shock
pump failure, low fluid volume, poor vessel function
type of shock: not enough oxygen is delivered to the tissues of the body, caused by low output of blood from the heart
cardiogenic shock
the presence of abnormally large amounts of fluid between cells in the body tissues, causing swelling of the affected area.
edema
cardiogenic shock occurs when…
the heart cannot maintain a sufficient output to meet the demands of the body.
type of shock: occurs when there is a block to blood flow in the heart or great vessels, causing an insufficient blood supply to the body’s tissues.
obstructive shock
most common examples of obstructive shock…
pulmonary embolism, cardia tamponade, tension pneumothorax.
type of shock: occurs when there is widespread dilation of the small arterioles, small venules, or both.
distributive shock
what are the types of distributive shock?
septic shock, neurogenic shock, anaphylactic shock, and psychogenic shock
define septic shock
caused by severe infection
define neurogenic shock
circulatory failure caused by paralysis of the nerves
define anaphylactic shock
occurs when a person reacts quickly to a substance to which they have been sensitized.