QuestionSBA
QuestionChoice
This is correct. The man's sympathetic nervous system has been activated due to the trauma. The sympathetic nervous system activates sweat glands via acetylcholine signalling.
10026190
a
Increased sympathetic activity
QuestionChoice
This is incorrect. There will be increased aldosterone secretion in response to the low blood pressure, however, the action of aldosterone is to retain water and sodium, not to cause sweating.
10026191
b
Increased aldosterone secretion
QuestionChoice
This is incorrect. In an acute setting, raised cortisol is responsible for mobilizing glucose for energy, inhibiting pain and promoting a fight-or-flight response. It would not cause sweating.
10026193
d
Increased cortisol secretion
QuestionChoice
This is incorrect. Increased antidiuretic hormone secretion would result in a lower volume of more concentrated urine being produced, not sweating.
10026192
c
Increased antidiuretic hormone secretion
QuestionChoice
This is incorrect. Whilst reduced blood glucose can cause symptoms such as sweating, this man's glucose would not be reduced as hormones such as cortisol would increase blood glucose.
10026194
e
Reduced blood glucose
Concept
Chapter
2693
5882
Sympathetic nervous system
Topic
152
Neuroscience
17636
A 32 year old male is brought to the Emergency Department following a road traffic collision. On arrival, he is conscious, alert and orientated.

His abdomen is bruised and distended. He is pale and sweaty. He has an elevated heart rate at 134bpm, a blood pressure of 84/67mmHg and a respiratory rate of 24 breaths per minute.

Which of the following best describes the main reason the patient appears pale and sweaty?
a