Answer:
The client is at risk of experiencing blood viscosity and vasoconstriction.
Step-by-step explanation:
As you can see in the question above, the customer was in the mountains. In the mountains the air becomes thin, causing the body's need for oxygen to increase.
As the customer's car broke down in the mountainous region, the customer will need to walk 24 kilometers under a temperature of 20ÂșC, which means that his heart will have to increase his work to supply the need for oxygen by the rarefied air and physical effort. This can alter the blood flow causing the client to be at risk of viscosity and vasoconstriction of the blood.