Endo

Question 1

prolactinoma Ix

Answer 1

prolactin - raised in 1000s (N.B. non-functioning pit adenoma could raise prolactin but usually <1000)
pit MRI
visual field assessment

Question 2

acromegaly Ix

Answer 2

Oral glucose tolerance test - failure to suppress GH

pit MRI

Question 3

Cushing’s vs Addison’s

Answer 3

Cushing's = XS cortisol 
test = low dose dexamethasone test

Addison's = 1 adrenal insufficiency = not enough cortisol
test = short synACTHen test