Shock and Haemorrhage DONE

Question 1

What is the definition of shock?

Answer 1

inadequate perfusion to the vital organs (brain, heart, kidneys)

Question 2

What are the classifications of shock?

Answer 2

High output (vasodilation)
- anaphylactic shock
- sepsis
Low output
- cardiogenic
 - hypovolaemic

Question 3

What is the cause of carcinogenic shock?

What are the consequences of it?

Answer 3

• due to any form of pump failure, but most commonly myocardial infarction
• ABP falls and CVP rises
• the fall in BP strong activates the sympathetic nervous system, leading to widespread vasoconstriction (expect the brain)
• strong sympathetic drive to the kidneys (and, more directly, the fall in renal perfusion pressure) activates the RAAS