Shock

Question 1

Shock

Answer 1

Inadequate tissue perfusion

Inadequate oxygenation to the tissues

Question 2

Hypovolaemic shock pathway

Answer 2

Loss of blood volume 
Decreased venous return 
Decreased EDV
Decreased SV 
Decreased CO 
Decreased MABP
Inadequate tissue perfusion

Question 3

Hypovolaemic shock causes

Answer 3

Haemorrhagic: trauma, surgery

Non-haemorhagic: vomiting, diarrhoea, sweating

Question 4

Haemorrhagic shock

Answer 4

Tachycardia (increased HR)
weak, fast, thready pulse (decreased SV)
Cold peripheries
Hypotension

Question 5

Cardiogenic shock

Answer 5

Damage to the heart causes sustained hypotension
Decreased cardiac contractility
Decreased SV
Decreased CO
Decreased MABP 
Inadequate tissue perfusion

Question 6

Cardiogenic shock causes

Answer 6

MI

Question 7

Obstructive shock

Answer 7

Increased intrathoracic pressure 
Decreased venous return
Decreased EDV
Decreased SV
Decreased CO 
Decreased MABP 
Inadequate tissue perfusion

Question 8

Obstructive shock causes

Answer 8

PE
Pneumothorax (tension)
Cardiac tamponade

Question 9

Neurogenic shock

Answer 9

Loss of sympathetic tone
Decreased CO
Decreased MABP
Inadequate tissue perfusion

Question 10

Neurogenic shock causes

Answer 10

Spinal cord injury

Question 11

Vasoactive shock

Answer 11

Release of vasoactive mediators
Venous and arteriolar vasodilation 
Decreased venous return 
Decreased TPR 
Decreased CO
Decreased MABP
Inadequate tissue perfusion

Question 12

Vasoactive shock causes

Answer 12

Septic shock