Rheum Flashcards

0
Q

Sjogrens have an increased risk of what type of malignancy

A

44 fold increase in NHL especially MALT
risk factors: disappearance of RF, low C4, cutaneous vasculitis and mixed monoclonal cryoglobulinaemia
Salivary glands most common location but can get unilateral or bilateral swelling that is benign

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1
Q

What is the prognostic importance of rheumatoid factor positivity in RA?

A

Erosive disease
Response to Rituximab
Extra-articular manifestations

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2
Q

What causes false positive anti-CCP?

A

TB
Psoriatic arthritis
SLE

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3
Q

If suspect RA and serology negative, should you repeat the test?

A

Probably not- low risk of seroconverting

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4
Q

Where to aspirate knee?

What does NORMAL fluid look like?

A

1cm medial to junction between the upper and middle thirds of the patella
Fluid is clear and VISCOUS (abnormal is cloudy and THIN)

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5
Q

How many white cells per mm3 do you expect for septic joint, inflammatory joint, non inflammatory and normal joint?

A

Normal less than 200
Noninflammatory 200-2000
Inflammatory 2000 - 100000
Septic usually over 50000

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6
Q

Aim for urate levels below this level reduces gout attacks?

A

35micromol/L

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7
Q

What are the SECONDARY causes of pseudogout which need to be considered in a younger patient who presents?

A
haemochromatosis
hyperparathyroidism
low phosphate
low magnesium
hypothyroidism
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8
Q

Difference between oral ulcers in SLE and Becet’s?

A

Becet’s PAINFUL

SLE PAINLESS

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9
Q

What things in psoriasis increase the chance of getting psoriatic arthritis?

A

nail dystrophy
scalp involvement
intergluteal involvement
involvement three or more areas

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10
Q

Do you get renal involvement in MCTD?

A

No

Remember, ANA often up, RF often up, RNP MUST be up
but dsDNA, Sm, scleroderma Ab are ABSENT

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11
Q

IgG4 disease biopsy

A

plasma cells
small lymphocytes
often fibrosis

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12
Q

If looks like pancreatic cancer but then serum IgG4 up?

A

could still be cancer

cannot rely

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13
Q

Strongest evidence for fibromyalgia

A

aerobic exercise

first med choice is amitriptyline as per etg, or duloxetine, or pregabalin (pain sleep fatigue)
NOT SSRIs

for pain, also panadol, tramadol, tapentadol

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14
Q

Classic Becet’s picture

A

youngish mediterranean man with anterior uveitis, painful gentital and mouth ulcers

positive pathergy test suggests

also get thrombophlebitis, aspetic meningitis, arthritis, erythema nodosum, DVT

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15
Q

percent PMA to GCA

A

10-20%

but 40-60% GCA have PMR

16
Q

Most specific GCA symptom?

A

jaw claudication

17
Q

pathogenesis GCA?

A

TLR activate vascular dendritic cells–>Al17 and IFNgamma

18
Q

What other imaging would you do in GCA?

A

CTA or MRA to look for other organ involvement

19
Q

Muscle enzymes in PMR

A

normal
normal EMG too
normal muscle biopsy

20
Q

What interferes with response to TNF treatment?

21
Q

how many of the sjogrens are seroneg?

A

20%

can get small fibre neuropathy

22
Q

most common presenting feature scleroderma is

23
Q

Classic cause enthesitis

A

psoriatic
next reactive
next ankylosing spondylitis

24
Classic OA joints in hands
1st CMC and PIPs hand splints good for CMC NSAIDS out these days
25
Patellofemoral joint RA typical presentation
classically get pain getting out of chair and WALKING DOWN THE STAIRS
26
How do APL induce thrombosis
interfere with clotting cascade especially protein C induce tissue factor expression induce adhesion molecule expression promote thrombosis
27
Contraindications for TNF
``` previously untreated TB recurrent LRTI septic arth last 12 months MS or demyelinating illness IDC infected prosthesis malig within 10 years- BCC within 5 years preg CCF skin ulcers NOT pyoderma gangrenosum ```
28
which system NOT affected by PAN
pulmonary think if vasculitis with orchitis without glom neph idiopathic PAN-->steroids and cyclophos hepatitis PAN-->plasmapheresis and antiviral
29
good prognosis in RA if present with
large joint just a few acute seroneg
30
can you be CPPD positive and asymptomatic?
YES!
31
Sjogrens and what type lymphoma
NHL
32
ORganism most likely in vertebral OM
random: s aureus-->e coli | after surg on spine--->s epiderm-->propionebacterium acnes
33
most specific Ab for APL syndrome
anticardiolipin ab most sensitive | APL ab most specific
34
What to avoid in psoriatic arthritis
hydroxychloroquine | oral steroids- increase pustular psoriasis
35
where are the most SPECIFIC SLE ulcers
palate
36
Complement low in HSP
NO! | unlike cryo
37
what is SAP in amyloid
all amyloid people have serum amyloid protein which is a GP that binds amyloid independently of the protein of origin