Stages of shock

Question 1

What are the four stages of shock?

Answer 1

initial, compensatory, progressive, irreversible

Question 2

Describe features of initial stage of shock?

Answer 2

• few clinical signs
• no signs of decreased perfusion
• may see decreased BP and increased lactate

Question 3

Describe features of compensatory stage of shock?

Answer 3

• body attempts to compensate for perfusion decrease
• tachycardia
• vasoconstriction

Question 4

Describe features of progressive stage of shock?

Answer 4

• compensatory mechanisms fail
• mean arterial pressure (MAP) is below 65
• inflammatory response
• fluid issues due to increased capillary permeability
• clotting abnormalities

Question 5

Describe features of irreversible stage of shock?

Answer 5

• occurs due to failure of body to respond to prior treatment
• patient unlikely to survive due to imminent organ failure