Shock

Question 1

Define “Shock”.

Answer 1

A clinical state in which thee delivery of oxygenated blood to the bodys tissue is not adequate to meet metabolic demand.

Question 2

What are the 5 types of shock?

Answer 2

1. Hypovolaemic
2. Dissassociative
3. Distributive
4. Obstructive
5. Cardiogenic

Question 3

Define “hypovolaeic shock”.

Answer 3

Shock due to the acute loss of circulating blood volume.

Question 4

What fraction of the blood volume is the body able to loose without showing symptoms?

Answer 4

1/5 or 15%

Question 5

What would you expect to see in a patient with Class 1 hypovolaemic shock?

Answer 5

• PT is able to cope,
• No signs of obvious clinical decline

Question 6

What is the rough % blood loss in a Pt presenting with Class 2 Hypovaemic shock?

Answer 6

15-30%

Question 7

What signs and symptoms would you expec to find in a Pt with Class 2 hypovolaemic shock?

Answer 7

• Peripheral shut down
• Tachypneoia
• Tachycardia

Question 8

What is the estimated blood loss in a PT in the de compensation stage of hypovolaemic shock?

Answer 8

30-40%

Question 9

At what point does hypovolaemic shock become unmanageable pre-hospitaly?

Answer 9

Stage 3 onwards

Question 10

Define “Cardiogenic Shock”.

Answer 10

When the heart has an inability to be able to pump blood around the body, leading to a reduced delivery of oxygenated blood.

Question 11

What are the common causes of cardiogenic shock?

Answer 11

• MI
• Acute Heart failure
• Arrhythmia

Question 12

Define “Distributive Shock”.

Answer 12

Widespread dilation of the peripheral blood vessels, leading to reduced uptake of oxygen at the tissues.

Question 13

What are the common causes of distributive shock?

Answer 13

• Anaphylaxis
• Sepsis
• Nervous systems related cause

Question 15

Define “Cardiogenic Shock”.

Answer 15

An inability for the heart to be able to pump blood around the body.

Question 16

What are the common causes of cardiogenic shock?

Answer 16

• Mi
• Acute heart failure
• Arrthymia

Question 17

Define “Distributive shock”.

Answer 17

A widespread dilation of the peripheral vascular system, reducing uptake at the tissues.

Question 18

What are the common causes of distributive shock?

Answer 18

• Anphylaxsis
• Sepsis
• nervous system related causes

Question 19

Define “Obstructive shock”.

Answer 19

When there is a reduction of flow in or out of the heart, caused by an obstruction around the heart.

Question 20

What are the common causes or obstructive shock?

Answer 20

• Tension pneumothorax
• Cardiac tamponade
• Passive pe

Question 21

Define “Dissociative shock”.

Answer 21

A reduction in the oxygen carrying capacity of red blood cells or reduced number of red blood cells.

Question 22

What are the common causes of dissociative shock?

Answer 22

• Anaemia
• Sickle cell
• Carbon monoxide poisening

Question 23

What is required in the appropriate management of shock?

Answer 23

• Correcting CABC
• Request back up
• Correct positioning
• Prompt transport