Final Exam Review Flashcards
How does apoplexy lead to diplopia?
Blood accumulates in the cavernous sinus and presses on the nerves that pass through there.
Vanadium has shown efficacy in which kind of diabetes?
Type 2
Which pituitary cell is basophilic?
ACTH
In which neoplasm is petrosal sampling done to locate the origin of the defect?
ACTH adenoma
What is the risk of CSF leak after a transsphenoidal resection?
1%
Most dihydrotestosterone comes from ___________ (in both men and women).
peripheral tissues
On which cells does FSH act?
Sertoli in males and granulose in females
How is the inferior petrosal sinus test used?
Blood is taken from the inferior petrosal sinus and from elsewhere in the body’s periphery. If the ACTH is much higher in the IPS sample, then it is likely a pituitary ACTH-secreting adenoma. If the levels are equal, then ectopic ACTH-secreting tumor is likely.
What drug can treat adrenal adenoma Cushing’s?
Ketoconazole
What signs are suggestive of a malignant thyroid nodule?
Cold nodule; young person; solitary
The best initial test for evaluating a thyroid nodule is ________.
TSH
Which drugs prevent activation of T4?
Beta-blockers
PTU
Glucocorticoids