Week 5 - Shock & Hypertension

Question 1

What is shock?

Answer 1

• condition where circulatory system cannot provide adequate blood supply to vital organs
• results when MAP decreases
• MAP = HR x HV x TPR
• decrease of any of them will result in shock

Question 2

What are the types of shock?

Answer 2

hypovolemic
- loss of blood or plasma
- SV decreases
cardiogenic
- very low cardiac output
- SV and/or HR decreases
vasogenic
- septic or anaphylactic
- TPR decreases
neurogenic
- neural
- TPR decreases

Question 3

What is non-haemorrhagic hypovolemic shock?

Answer 3

• caused by loss of water or plasma
• from diarrhoea/ cholera
• excessive urinary loss
• burn injuries causing plasmas to travel to surface
• loss of blood volume decreases CO
• treat by fluid replacement

Question 4

What is haemorrhagic hypovolemic shock?

Answer 4

• caused by blood loss
• from external/internal injury
• loss of blood volume decreases CO
• treat by stopping bleeding and then fluid replacement