Random 2 Flashcards

1
Q

MCC tumor of adrenal medulla in children?

A

Neuroblastoma

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2
Q

Anterior pit derived from?

Post pit derived from

A

ant=rathkes pouch– oral ectoderm

Post=neuroectoderm

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3
Q

Insulin dependent channel?

A

glut 4– adipose tissue and skeletal muscle

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4
Q

hormone that stimulates prolactin release?

A

TRH

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5
Q

17 alpha hydroxylase deficiency– what will XX phenotype look like?

A

Externally phenotypic female with normal internal sex organs, lacks secondary sexual characteristics

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6
Q

17 alpha hydroxylase deficiency– what will XY phenotype show?

A

ambiguous genitalia; undescended testes

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7
Q

How does cortisol maintain blood pressure?

A

Increases alpha 1 receptors on arterioles–>inc sensitivity to NE and Epi

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8
Q

IP3 signaling pathway?

A

GGOAT GnRH; GHRH; Oxytocin; ADh, TRH

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9
Q

Vit D and aldosterone signaling pathway?

A

Steroid receptor

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10
Q

Thyroid hormone leads to increase of this receptor?

A

Beta One receptor in heart

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11
Q

Increases beta one receptor in heart?/

A

TH

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12
Q

Describe negative feedback of T3

A

feeds back on anterior pituitary to decrease its sensitivity to TRH

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13
Q

3 things that increase thryoid binding globulin?

A

Pregnancy, OCP (sort of the same thing) and Hepatic failure

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14
Q

Elevated HVA; tumor

A

Neuroblastoma

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15
Q

Myxedema vs pretibial myxedema

A

facial/periorbital myxedema is HYPOTHYROIDISM

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16
Q

histology of hashimotos

A

Lymphocytic infiltrate with germinal centers– CELL MEDIATED IMMUNE RESPONSE

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17
Q

HLA DR 5?

A

Hashimotos– 5 dollars for chinese chicken

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18
Q

Protuberant tongue; portruding umbilicus

A

cretinism

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19
Q

Riedels thryoditis– thyroid replaced by?

A

fibrous tissue

20
Q

thyroid cancer– capsular infiltration?

A

follicular carcinoma

21
Q

sheets of cells in amyloid stroma

A

Medullary carcinoma

22
Q

What will you see in urine in primary hyperparathyroidism?

A

cAMP– blood will show high alk phos

23
Q

Kidney stones, many fractures, constipation, psych shit

A

primary hyperparathyroidism

24
Q

Hight PTH; hypocalcemia; shortened 4th and 5th digits; short stature

A

pseudohypoparathyroidism

25
two treatments for pituitary adenoma
cabergoline and bromocriptine
26
3 drugs to treat nephrogenic DI?
HCTZ; indomethacin; amiloride
27
empty sella syndrome is common in?
obese women
28
HLA dr3 and dr4
type 1 diabetes mellitus
29
difference in histology of dm1 and dm2
dm1=leukocytic infiltrate | dm2=amyloid deposit
30
describe rhizopus
Broad, nonseptae hyphae-- branch at 90 angles
31
carcinoid syndrome can result in which vitamin deficiency?
Niacin-- remember that niacin is derived from tryptophan and carcinoid syndrome has increased serotonin which is also derived from tryptophan-->dec in tryptophan-->dec in niacin which can cause pellagra
32
MEN1 often present with?
kidney stones and stmoach cancers
33
DDX for disulfiram like effects?
Sulfonylureas; metronidazole; griseofulvin
34
How do DPP-4 inhibitors work?
GLP1 is inactivated by DPP4 (DPP4= gliptins) | glp1 analogs= exenatide and liraglutide
35
Steroid receptor pathway
VETTT CAP | Vitamin D; estrogen; T3 T4; testosterone; cortisol; aldosterone progesterone
36
Post pituitary derived from?
Neural tube (ectoderm)
37
GI tract derived from? | CV derived from?
Endoderm | Mesoderm
38
Besides ataxia and telangiectasia-- what else can be seen in an AT patient
humoral and cellular immune dysfunction
39
this murmur is heard best with the patient leaning forward
Aortic regurg
40
Daytime and nighttime treatment for narcolepsy?
Modafinil and amphetamines during day | Sodium oxybate at night
41
Target cells?
HALT!!!!! HbC, asplenia, liver disease, thalassemi
42
Basophilic stippling/
TAiL | Thalassemia, Anemia of chronic disease, lead poisoning
43
Crew cut appearance on xray?
Beta thal major
44
Defect in sideroblastic anemia?
ALA synthase -- can be caused by alcohol lead and isoniazid-- treat with pyridoxine!!!
45
Treat sideroblastic anemia with?
pyridoxine