Circulatory Shock

Circulatory Shock

Define circulatory shock. Describe its various stages.
Answer:

Circulatory Shock Definition:

• It is a clinical syndrome characterized by impairment of adequate tissue perfusion primarily due to low cardiac output or acute circulatory failure.

Circulatory Shock Stages:

• According to Winters, circulatory shock occurs in 4 stages.

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1. Circulatory Shock Initial stage:

Circulatory Shock Initial stage Features:

• Slight reduction in the blood volume.

2. Compensatory stage:

Circulatory Shock Compensatory stage Features:

• Further reduction in the blood volume.
• Blood pressure is maintained due to reflex vasoconstriction.
• Blood supply to vital organs is not affected.
• Decrease in blood supply to non-vital organs.

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3. Progressive stage:

Circulatory Shock Progressive stage Features:

• Reduction in blood pressure and pulse pressure due to reflex tachycardia and vasoconstriction.
• Decreased in myocardial activity and arteriolar tone.
• Hypotension occurs.

4. Circulatory Shock  Irreversible state:

• Brain fails to function due to servere cerebral ischemia.
• Blood pressure falls.
• Due to decrease in the myocardial activity and arteriolar tone, cardic failure occurs.

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