The TRH (thyrotropin releasing hormone) stimulation test is useful in differentiating hypothalamic hypothyroidism from:
A) Primary hypothyroidism
B) Hashimoto's thyroiditis
C) Pituitary hypothyroidism
D) Sub-clinical hypothyroidism
Question 2
True or false? When taken by a euthyroid individual, oral contraceptives will have an increasing effect on thyroxine binding globulin.
A) True
B) False