Chapter 13- Shock Flashcards
A swelling or enlargement of the wall of a blood vessel that results from weakening of the vessel wall.
aneurysm
A balance of all systems of the body.
homeostasis
The part of the nervous system that controls the involuntary activities of the body such as the heart rate, blood pressure, and digestion of food.
autonomic nervous system
A condition that occurs when there is widespread dilation of the small arterioles, small venules, or both.
distributive shock
Shock caused by a sudden, temporary reduction in blood supply to the brain that causes fainting (syncope).
psychogenic shock
A condition in which the circulatory system fails to provide sufficient circulation to maintain normal cellular functions; also called hypoperfusion.
shock
Developing a sensitivity to a substance that initially caused no allergic reaction.
sensitization
The force of resistance against which the heart pumps.
afterload
Circulatory failure caused by paralysis of the nerves that control the size of the blood vessels, leading to widespread dilation; seen in patients with spinal cord injuries.
neurogenic shock
An extreme, life-threatening, systemic allergic reaction that may include shock and respiratory failure.
anaphylaxis
The late stage of shock when blood pressure is falling.
decompensated shock
A blue skin discoloration that is caused by a reduced level of oxygen in the blood. Although paleness, or a decrease in blood flow, can be difficult to detect in dark-skinned people, it may be observed by examining mucous membranes inside the inner lower eyelid and capillary refill. On general observation, the patient may appear ashen or gray.
cyanosis
A blood clot that breaks off from a large vein and travels to the blood vessels of the lung, causing obstruction of blood flow.
pulmonary embolism
A condition in which the internal body temperature falls below 95 degrees F (35 degrees C).
hypothermia
Loss of water from the tissues of the body.
dehydration