Shock Flashcards

1
Q

Hypoperfusion

A

Shock;

A state of collapse and failure of the cardiovascular system.

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2
Q

Homeostasis

A

A balance of all systems of the body

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3
Q

Perfusion

A

The circulation of blood within an organ or tissue in adequate amounts to meet the cells current needs for oxygen, nutrients, and waste removal.

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4
Q

Circulatory system

A
Arteries 
Arterioles 
Capillaries 
Venules 
Veins
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5
Q

Two circuits in the body

A

Systemic circulation in the body

Pulmonary circulation in the lungs

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6
Q

Cardiovascular system

A

The pump (heart)
Container (vessels)
Contents (blood)

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7
Q

Blood pressure

A

A rough measure of perfusion

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8
Q

Systolic pressure

A

Peak arterial pressure;

Pressure generated every time the heart contracts

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9
Q

Diastolic pressure

A

Pressure maintained within the arteries while the heart rests between heartbeats

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10
Q

Pulse pressure

A

Difference between systolic and diastolic pressure (systolic - diastolic)

Pulse pressure less than 25 mm Hg may been seen in patients with shock

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11
Q

Autonomic nervous system

A

Regulates involuntary functions such as sweating and digestion.

Control capillary sphincters

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12
Q

Capillary sphincters

A

Regulates blood flow through the capillary beds.

Also responds to other stimuli such as cold, heat, the need for oxygen, and the need for waste removal.

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13
Q

What causes pump failure ?

A

Cardiogenic shock
Obstructive shock

Tension pneumothorax
Cardiac tamponade
Pulmonary embolism

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14
Q

Distributive shock

A

Septic shock
Neurogenic shock
Anaphylactic shock
Psychogenic shock

Result of poor vessel function

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15
Q

Hypovolemic Shock

A

Hemorrhagic shock
Non-hemorrhagic shock

Cause of low fluid volume

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16
Q

Edema

A

Swelling