Clin Med - Endo Flashcards

1
Q

most abundant cell of ant pituitary

A

somatotrophs, secrete GH

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2
Q

hormones produced by ant pit

A

ACTH, FSH, GH ,LH, PRL, TSH (peptides)

FAT GLP

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3
Q

hormones produced by hypothalamus

A

GHrH, GHiH, GnRH, PiF, TRH (peptides - PiF)

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4
Q

hormones produced by post pit

A

ADH, oxytocin (peptides)

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5
Q

hormones produced by adrenal medulla

A

epi, norepi (amines)

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6
Q

hormones produced by adrenal cortex

A

cortisol, aldosterone (steroids)

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7
Q

pituitary adenoma

A

high GH, PRL, low TSH, ACTH, GnT

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8
Q

prolactin suppressed by

A

dopamine (produced by hypothalamus)

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9
Q

GH 3 actions

A

glucose for brain (can raise plasma glucose)
AA uptake by muscle
fat as main energy source

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10
Q

GH primarily released what time of day

A

night

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11
Q

Persistently high GH can result in what other endocrine dz

A

diabetes (starts w insulin resistance)

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12
Q

ACTH bursts MC what time of day

A

morning

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13
Q

where to glucocorticoids bind w/in the cell

A

GRE on DNA

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14
Q

low intrarenal arterial pressure and hyperkalemia trigger ___ release

A

aldosterone

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15
Q

21 hydroxylase deficiency clinical picture

A

virilization, low cortisol/aldosterone

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16
Q

thick oily skin, cardiomegaly, DM

A

GH excess (acromegaly, gigantism)

17
Q

if you give glucose you expect GH to

18
Q

post-partum hypopituitarism d/t ischema

A

Sheehan syndrom

19
Q

lack of ADH, polyuria, polydipsia

A

diabetes insipdus

20
Q

glomerosa of adrenal gland produces

A

mineralcorticoids

21
Q

adrenal fasculata and reticularis produces

A

glucocorticooids, sex steroids

22
Q

adrenal medulla produces

A

catecholamines

23
Q

when to remove an adrenal nodule

A

> 6cm, funcitonally active

24
Q

seratonin stimulates

A

glucocorticoid production

25
hypoK, hypergly, alkalosis, obesity, purple striae
Cushings (glucocorticoid excess)
26
dehydr, low Na, high K, acidosis
glucocorticoid deficiency
27
low cortisol and aldosterone, high ACTH leading to bronzing of skin
Addisons dz
28
urine VMA important to dx
pheochromocytoma, neuroblastoma (tumor of adrenal medulla)
29
if you find a cancer in the adrenal glands, is it more likely primary or secondary
primary
30
when kid is > __ SD below NL, investigate GH
2.5
31
HA, visual field deficit, libido dec.
prolactinoma
32
tx: prolactinoma
dopamine agonist (bromacriptine)
33
what's a glucose suppression test
give glucose to suppress GH, if ineffective, suspect adeoma
34
what does somatostatin do to GH
prevents its release
35
MEN1 inheritance pattern
autosomal dom
36
MEN1 3 P tumors
pit adenoma PTH adenome pancreatic tumor (insulinoma/gastrinoma)
37
sx like pituitary adenoma, then sudden onset HA, visual loss, AMS, etc
pituitary apoplexy
38
pit apoplexy tx
IV dexamethasone, transphenoidal surg
39
euvolemic, hyponatremic w/ excess sodium in urine
SIADH