Shock

Question 1

What is shock

Answer 1

Abnormality of the circulatory system resulting in inadequate tissue perfusion and oxygenation

Question 2

What do all shocks lead to

Answer 2

Decreased CO/SV therefore inadequate oxygenation and perfusion

Question 3

Hypovolaemic shock

Answer 3

Loss of volume (blood, fluids) leads to decreased venous return

Question 4

Cardiogenic shock

Answer 4

Decreased myocardial contractility

Question 5

Obstructive shock example

Answer 5

Tension pneumothorax

Question 6

Obstructive shock

Answer 6

Increase in intra-thoracic pressure causes decreased venous return

Question 7

Neurogenic shock

Answer 7

Loss of vasomotor tone causes increased vasodilation and decreased venous return

Question 8

Vasoactive shock

Answer 8

Release of vasoactive mediators causes vasodilation and decreased venous return