Prolactin test: when to take it and what it is for
Why a prolactin test is ordered, how hormone levels change during the day, what affects the result, and which numbers prompt a search for the cause.
Why a prolactin test is ordered, how hormone levels change during the day, what affects the result, and which numbers prompt a search for the cause.
TSH is produced by the pituitary gland, not the thyroid. We explain how thyrotropin controls the thyroid, what its level shows, and when a doctor orders this test.