A 42-year-old male presents to the ED with persistent fatigue, lethargy, and dizziness three months after sustaining a significant head injury in a road traffic collision.
The initial injury involved a subdural haematoma that was managed conservatively. The patient reports feeling generally unwell with reduced appetite, nausea, and episodes of confusion. He also mentions feeling cold all the time and has noticed a decrease in facial hair growth.
Which combination of laboratory findings would you most likely find in this patient?
Low cortisol, low TSH with low free T4, low LH/FSH with low testosterone
Elevated cortisol, low TSH with low free T4, normal LH/FSH with normal testosterone
Low cortisol, elevated TSH with low free T4, low LH/FSH with low testosterone
Normal cortisol, low TSH with normal free T4, low LH/FSH with normal testosterone
Low cortisol, low TSH with normal free T4, elevated LH/FSH with low testosterone