Extras Flashcards

1
Q

Young person seronegative arthralgia
salmon pink rash
ferritin high
fevers and lymohadenopathy

A

adult onset stills

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2
Q

features sjogrens

A

dry eyes, mouth, vagina

lymphoma risk increase

sensory neuropathy

raynauds

RTA

arthralgia

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3
Q

SErology in sjogren’s

A

RF in ALL!

Ro 70% (only 10% RA)
La30%
SChirmers test under 10mm in 10 mins
low C4
hypergammaglobulinaemia
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4
Q

Benefit of febuxostat over allopurinol

A

NOT renally excreted

No hypersens syndrome

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5
Q

Is HCV arthropathy an indication for antivirals

A

no

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6
Q

dermatomyositis most common malig

A

lung and ovarian

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7
Q

allopurinol hypersens

A

HLA B 58:01

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8
Q

malig with TNF alpha

A

NOT lymphoma

just non melanoma skin cancers

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9
Q

U3RNP vs U1 RNP

A

U3 RNP is a scleroderma Ab- skeletal muscle and more PAH

U1 RNP in MCTD or SLE

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10
Q

What predicts mortality in scleroderma

A

extent of disease on HRCT!
Au research
Even better than FVC

but NO value in serial HRCTs- matched by PFTs usually

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11
Q

why do you worry about high steroid doses in scleroderma

A

increase risk renal crisis

also NSAIDS

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12
Q

Bosentan effect on hand ulcers

A

no effect on healing but stop new ulcers

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13
Q

What agent is useful in scleroderma lung

A

cyclophosphamide

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14
Q

Most common interstitial lung disease pattern in scleroderma

A

NSIP

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15
Q

What predicts mortality in scleroderma

A

extent of disease on HRCT!
Au research
Even better than FVC

but NO value in serial HRCTs- matched by PFTs suually

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16
Q

Type of endothelin receptor antagonists

A

non selective- receptors A and B- macicentan and bosentan

selective - receptor A- ambrisentan

17
Q

urate crystals look like

A

needle shaped

neg biref

18
Q

calcium oxalate crystals look like

A

bipyrmaidal crystals

neg birefring

19
Q

calcium pyrophosphate

A

rhomboid crystals

weak positive birefringence under polarised light

20
Q

calcium hydroxyapatite crystals

A

small non birefringent

only see with EM

21
Q

does sjogrens cause hypergammaglobulinaemia

A

hypogammaglobulinaemia in 80%

do a kappa lambda ratio to check are polyclonal!!!