HMS, BM EQ-Bank 133

Explain how the circulatory and respiratory systems respond to dehydration during movement and outline appropriate first aid interventions. (5 marks)

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Sample Answer

Circulatory System Response:

Blood volume decreases affecting stroke volume
Heart rate increases to compensate
Blood thickens making circulation less efficient

Respiratory System Impact:

Breathing rate increases to compensate
Airways may become dry
Oxygen delivery becomes less efficient

First Aid Response:

Cease activity immediately
Move to cool environment
Small sips of electrolyte solution
Monitor vital signs including heart rate
Gradual rehydration to prevent shock

Show Worked Solution

Sample Answer

Circulatory System Response:

Blood volume decreases affecting stroke volume
Heart rate increases to compensate
Blood thickens making circulation less efficient

Respiratory System Impact:

Breathing rate increases to compensate
Airways may become dry
Oxygen delivery becomes less efficient

First Aid Response:

Cease activity immediately
Move to cool environment
Small sips of electrolyte solution
Monitor vital signs including heart rate
Gradual rehydration to prevent shock