Corticosteroids (Never Finished oopsie) Flashcards
list the adrenal layers from cortex (outside) to medulla (inside)
zona glomerulosa
zona fasciculata
zona reticularis
what’s produced by zona glomerulosa?
aldosterone aka mineralcorticoids
what’s produced by zona fasciculata?
cortisol aka glucocorticoids
what’s produced by zona reticularis?
androgens
release of cortisol and aldosterone from adrenal is stim by what?
ACTH
hypoadrenocorticism aka Addison’s is very common in…
dogs
hypoadrenocorticism aka Addison’s pathology
iatrogenic (via overdose of Tx hyper)
neoplastic (pituitary tumor that destroys ACTH production)
***primary autoimmune disorder
breed predisposed (poodle, water dog, nova scotia duck retriever)
hypoadrenocorticism aka Addison’s diagnostics
CHEM - hyperkalemia, hyponatremia, hypochloremia (pt will be PU/PD)
***ACTH stim test
describe the ACTH stim test for hypoadrenocorticism aka Addison’s
decreased CORT at the start
ACTH will NOT induce response
Hydrocortisone is ___ form of cortisol
endogenous
Hydrocortisone glucocort:mineralcort ratio
1 to 1
Hydrocortisone administration
IV
**can use to save dog from Addison’s crisis
list the hypoadrenocorticism drugs that are ONLY glucocorticoids potency
Triamcinolone
Dexamethasone
what hypoadrenocorticism drug is the most potent glucocorticoid?
Dexamethasone
what is the most potent mineralcorticoid for Tx hypoadrenocorticism?
Aldosterone