Pituitary disease Flashcards
tests to order for amenorrhea
- B HCG
- prolactin
- sTSH
- FSH
- LH
- Estradiol
Secondary causes of high prolactin
- pregnancy
- primary hypothyroidism
- drugs: antipsychotics, GI motility drugs-
- renal and liver failure
Triple bolus stimulation test
GnRH
TRH
Insulin - to stimulate growth hormone and cortisol
2 drugs that can cause hyper function prolactinoma
respiradone
Metaclopramide
what are other causes of elevated growth hormone
Almost always pituitary adenoma
Function of insulin in the stimulation test
Insulin will lower glucose levels, increase growth hormone - should increase glucose -
Microadenoma is
a radiological term, describes a pituitary adenoma < 1cm
> 1cm adenoma
macroademona
how many individuals are affected by a pituitary adenoma
1 in 5 individuals
2 dopamine agonists to treat prolactinomas
cabergoline
bromocriptine (more safety known in pregnancy)
if dopamine treatment fails consider
more aggressive pituitary tumour subtype