questions Flashcards

1
Q

where would a phaeochromocytoma be found

A

adrenal medulla

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2
Q

phaeochromocytoma associated with

A

MEN type II
neurofibromatosis
von hippel-lindau

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3
Q

what is orlistat

A

anti-obesity drugs

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4
Q

what signalling pathway does GH use

A

the tyrosine kinase receptor pathway > activation of Janus Kinase > signalling transduction and activation of transcription (STAT)

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5
Q

de quervains thyroiditis

A

occurs in women post viral infection

presents with thyrotoxicosis which can change to hypothyroidism

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6
Q

histological findings of papillary carcinoma of the thyroid

A

change in nucleus shape and size and nuclear membrane irregularity

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7
Q

presentation of carcinoid syndrome

A
diarrhoea
facial flushing 
wheeze
abdominal pain 
tachycardia
hypotension
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8
Q

what improves symptoms in carcinoid syndrome

A

somatostatin analogues- octreotide

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9
Q

what is congenital adrenal hyperplasia

A

congenital deficiency of 21-hydroxyalse enzyme which causes underproduction of cortisol and aldosterone and over production of androgens

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10
Q

inheritance of congenital adrenal hyperplasia

A

autosomal recessive

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11
Q

main glucocorticoid hormone

A

cortisol

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12
Q

main mineralocorticoid

A

aldosterone

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13
Q

function of mineralocorticoids

A

act on the kidneys to control the balance of salt and water in the blood

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14
Q

what is testosterone

A

an androgen

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15
Q

what does 21-hydroxylase do

A

convert progesterone into aldosterone and cortisol

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16
Q

presentation of congenital adrenal hyperplasia

A

females: ambiguous genitalia and enlarged clitoris
- hyponatraemia
- hyperkalaemia
- hypoglycaemia

poor feeding
vomiting
dehydration
arrhythmias

17
Q

management of congenital adrenal hyperplasia

A

cortisol replacement: hydrocortisone

aldosterone replacement: fludrocortisone

18
Q

man is euvolaemic
low sodium
elevated urinary sodium
normal thyroid and adrenal

A

SIADH

19
Q

best monitoring for medullary thyroid carcinomas

A

calcitonin

20
Q

definition of systemic sclerosis

A

disease characterised by fibrosis across multiple organ systems

21
Q

limited cutaneous systemic sclerosis

A

subcatergory of systemic sclerosis that affects fewer organs
sparing the kidneys and the skin on the trunk and proximal limbs

22
Q

another name for limited cutaneous systemic sclerosis

A

CREST syndrome

23
Q

associated antibodies with limited sclerosis

A

anti-centromere

24
Q

antibody associated with systemic sclerosis

A

Scl-70

25
Q

features of CREST syndrome

A

calcinosis (hard nodules under the skin)
Raynaud’s
Esophageal dysmotility (food gets stuck on swallowing)
Sclerodactyly (tightening and thickening of the skin over the fingers)
Telangiectasia (prominent dilated capillaries)

26
Q

fingers become stiff and inflexible and raynauds

A

CREST

27
Q

management of CREST

A

no overall treatment
raynaud’s: calcium channel blockers, iloprost, bosentan
ACEi if renal involved

28
Q

what is associated with acanthosis nigricans

A

cushings

29
Q

marfans is caused by a mutation on which protein

A

fribrilllin-1

30
Q

presentation of hypocalcaemia

A

perioral paraesthesia
cramps
tetany- muscle cramps
convulsions