Exam 3 Gout, Pseudogout, Lupus Flashcards

(48 cards)

1
Q

uric acid is a product of?

A

purine metabolism

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2
Q

Dx and key Sx of excess uric acid

A

gout.

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3
Q

overproduction of uric acid caused by?

A

malignancy, enzyme defects

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4
Q

classic age for gout M and F?

A

men over 30, women postmenopausal

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5
Q

common comorbidity of gout?

A

renal stones, by a factor of 1000

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6
Q

dietary causes of gout?

A

alcohol, high purine foods like organ meats, spinach, asparagus, beans etc

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7
Q

stage 1 of gout and how to diagnose?

A

asymptomatic hyperuricemia, diagnose with uric acid levels. rarely diagnosed at this stage

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8
Q

stage2 of gout and how to diagnose?

A

acute gouty arthritis, pain. usually post alcohol, uric rich food binge.

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9
Q

stage 3 of gout and how to diagnose?

A

intercritical gout, intermittent attacks, normal triggers.

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10
Q

stage 4 of gout and how to diagnose?

A

chronic tophaceous gout. presence of tophi

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11
Q

gold standard gout Dx test?

A

arthrocentisis with culture and gram stain, look for urate crystals NEGATIVELY BIREFRIGENT

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12
Q

the less optimal test for gout Dx?

A

serum uric acid. elvated does not always predict gout.

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13
Q

complications of gout seen on Xray?

A

joint erosion, “rat bite” appearance

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14
Q

which joint does gout prefer?

A

usually first joint, usually big toe.

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15
Q

how many stages of gout Tx and what are they?

A

3 stages. acute, prophylaxis, lower uric acid stores

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16
Q

first line Tx for acute attack of gout?

A

NSAIDS. indomethacin (often appears on board)

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17
Q

contraindications of indomethacin?

A

gi bleed, renal impairment, PUD

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18
Q

what must be ruled out before steroid Tx of gout?

A

bacterial infection. steroids will exacerbate.

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19
Q

2nd line Tx of acute gout?

A

Colchicine, rarely used. lots of side effects

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20
Q

best drug for gout prevention?

A

Colchicine, same as the drug rarely used 2nd line for acute Tx

21
Q

best drug for long term management of gout overproducers?

A

allopurinol, prevention only.

22
Q

best drug for long term management of gout underproducers?

23
Q

patients of great concern when treating gout?

A

those with renal issues

24
Q

pseudogout causative agent?

A

CPPD calcium crystals

25
most common age group pseudogout?
elderly
26
joints affected by psuedogout?
50% in knees, then anywhere else including larger joints
27
DDx of pseudogout and osteoarthritis and RA?
pseudogout has redness in addition to pain. OA only pain no redness. RA order rheumatoid factor test
28
finding of pseudogout fluid aspiration?
positively birefringent. true gout is negative birefrigent.
29
Tx for pseudogout?
aspiration, NSAIDs
30
prophylaxis for pseudogout?
colchicine. use caution. many side effects
31
cause of SLE?
autoimmune. research ongoing
32
demographic of SLE?
females 7 times more likely, black women 4 times more
33
etiology of SLE?
antigen/antibody complexes deposited in tissue
34
key Sx of SLE?
MALAR butterfly rash (only systemic, not discoid), photosensitivity, sometimes alopecia
35
board test concern for SLE?
raynaud's phenomenon often described on boards along with malar rash
36
initial lab tests for SLE?
antinuclear antibody and erythrocyte sedimentation rate
37
SLE Tx?
NSAIDs first line. depends on severity of illness
38
possible complications of SLE?
lupus nephritis, CNS involvement, thrombocytopenia, antiphospholipid antibodies
39
how to Dx drug induced SLE?
anti-hitone antibody test if pt. taking a drug for more than a month presenting with SLE Sxs
40
major drug associated with drug induced SLE?
procainamide
41
course of SLE?
chronic, relapsing and remitting.
42
sjorgen syndrome associations?
SLE, RA
43
presentation of SS?
chronic lacrimal and salivary gland dysfxn. dry eye, dry mouth. low production of tears and saliva (sicca Sx)
44
Tx of SS?
saliva replacement, artificial tears, NSAIDs
45
mechanism of scleroderma/systemic sclerosis?
tighten and thicken tissues. narrowing small vasculature. scleroderma on the skin. systemic sclerosis, organs/connective tissue etc.
46
board concern for scleroderma/systemic sclerosis?
CREST syndrome, limited classification
47
lab tests for scleroderma/systemic sclerosis?
ANA positive, anti centromere antibodies (ACA)
48
Tx for scleroderma/systemic sclerosis?
Sx and supportive. Tx Raynaud's with calcium channel blockers