<prompt> Which level of prolactin definitely suggest hyperprolactinemia?200 ngmL150 ngmL50 ngmL100 ngmL  <response>: Elevations in prolactin may cause amenorrhea or galactorrhea. Amenorrhea without galactorrhea is associated with hyperprolactinemia in approximately 15 of women. In patients with both galactorrhea and amenorrhea, approximately two-thirds will have hyperprolactinemia; of those, approximately one-third will have a pituitary adenoma. In more than one-third of women with hyperprolactinemia, a radiologic abnormality consistent with a microadenoma 1 cm is found. Normal Prolactin levels Males: 2-20 ngmL Females non-pregnant: 2-30 ngmL Pregnant females: 10-200 ngmL A prolactin level of more than 200 ngmL is usually due to a pituitary tumour and requires pituitary evaluation 