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Wilderness

First Aid

Shock

Shock

Shock occurs when the tissues or organs of the body are inadequately

supplied with oxygenated blood.

Types of Shock:

Hypovolemic:

Loss of fluid from bleeding, sweating, vomiting, diarrhea and/or severe burns.

Cardiogenic:

Failure of the heart to adequately pump blood.

Vasogenic:

Loss of vascular tone resulting in an increased vascular space.

( Spinal Cord Injury, Sepsis, Anaphylaxis)

Stages of Shock:

Compensatory:

Peripheral vasoconstriction, increased HR and increased

respiratory rate to keep blood pressure within normal

limits to maintain adequate perfusion pressure.

Decompensatory:

Blood pressure starts to drop and inadequate perfusion begins

Irreversible:

Organs begin to die from inadequate perfusion

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