Paulson - Rheumatology Flashcards
what is the mc complaint in gout
my big toe hurts
gout has a __ onset
rapid
what finding is pathognomonic for gout
tophi
what are tophi
deposits of urate
what is podagra
gout of the foot
gout is usually __
and affects the __ of the great toe
monoarticular
MTP
what are the 3 stages of gout
- acute
- intercritical (interval)
- chronic articular and tophaceous
what are 6 rf for gout
- etoh
- red meat
- seafood
- fructose
- HCTZ diuretics
- obesity
what is the diagnostic value for serum urate in gout
>6.8 → not all w. this finding have gout
for the dx of gout, what 2 lab findings must be present
- serum urate > 6.8
- monosodium urate (MSU) must be present for gout to crystallize
what is the soc for gout diagnosis
aspirate of synovial fluid
what does synovial fluid aspirate show with gout
negatively birefringent, needle like, when viewed w. polarized light microscopy
what is the tx for asymptomatic hyperuricemia
lifestyle mods:
wt loss, reduce etoh, diet, enough fluids to urinate at least 2L/day, avoid hyperuricemic meds
should allopurinol be used in for acute gout attacks
no! → but keep pt on it if they are already taking
what are 5 meds that you might use for an acute gout attack
- NSAIDs
- indomethacin/naproxen
- celecoxib (Celebrex)
- colchine
- corticosteroids
what is the soc med for an acute gout attack
nsaids
what is the realistic/better choice soc for acute gout attacks
indomethacin/naproxen
how long should abortive gout meds be given for acute attack
1-2 days after sx resolution → typical course is 5-7 days
what are contraindications for celebrex
ckd w. CrCl < 60
active ulcer
NSAID allergy
anticoags
CVD
when might you use colchicine for an acute gout attack
NSAID intolerance
what are 2 common s.e of colchicine
diarrhea
abdominal cramping
what are contraindications for colchicine
severe hepatic/renal dz w/ colchicine
mod-strong P-pd and/or CYP3A4 inhibitor
when would corticosteroids be used for gout
can’t take NSAIDs or colchicine
what are indications for prophylactic tx in gout
- presence of tophi
- 2 or more gout attacks
- renal insufficiency
- joint damage on imaging
what are 2 steps in prophylactic tx of gout
- address preventie issues during intercritical (asymptomatic) period
- bring uric acid down slowly
what is the serum urate level goal for prophylactic gout tx
< 6
what prophylactic med is used to slowly reduce serum urate
cochicine
OR
low dose NSAID
what class of gout meds reduces uric acid production
xanthine oxidase inhibitors (XOI)
what is the main XOI
allopurinol
how should you administer allopurinol (in terms of titrating)
titrate up every 2-5 weeks
give prophylactic colchicine when initiating
what are s.e of allopurinol
rash
severe cutaneous/toxic epidermal necrolysis (TEN)
what is an example of a uricosurig med
Probenecid
what are uricosurig meds (2)
block tubular reabsorption of urate AND increase rate that uric acid is renally secreted
what are two inclusion criteria for uricosurig meds
- normal renal fxn → CrCl >60
- urinate at least 2 L/day
what is a contraindication for probenecid
G6PD
what do uricase meds do
enzyme from other animals → break down uric acid
what is an example of a uricase med
pegloticase
when is pegloticase used
last line med for pt who has been refractory to all other therapies
what is a contraindication for pegliocase
G6PD
most ppl with gout are __excreters of uric acid
under
what are rf for uric acid underexcretion
- renal insufficiency
- meds: low dose asa, thiazides, loop diuretics
- aidosis (DKA)
- volume depletion
- lead exposure
- etoh!!
overproduction of gout is usually __ or
__
inherited
2/2 to dz process
what is a rf for both underexcretion and overproduction of uric acid
etoh!
what are 2 other names for pseudogout
- calcium pyrophosphate dihydrate deposition dz (CPPD)
- chondrocalcinosis
- pyrophosphate arthropathy
what is pseudogout
precipitation of calcium pyrophosphate dihydrate crystals (CPP)
pseudogout causes
chronic or recurrent arthritis that mimics gout
what is the mc location for pseudogout
knee
also shoulders, wrist, elbow
pseudogout affects __ joints than gout
larger
what is asymptomatic/incidental pseudogout
CPP deposition on radiograph w.o symptoms
what is acute arthritis/pseudogout
self-limited, sudden attacks of pain, redness, warmth, disability/swelling
acute arthritis/pseudogout can be (in terms of location)
and usually affects __ joints
monoarticular or oligoarticular
larger
pseudogout can be triggered by (3)
surgery (esp parathyroidectomy)
trauma
major illness
what is chondrocalcinosis
e.o calcification in cartilage
what is the dx for pseudogout
synovial joint aspiration
what is the positive finding in synovial joint aspiration for pseudogout
weakly positive birefringent rhomboid crystals by polarized light microscopy
what is the tx for acute pseudogout
- aspiration
- intraarticular glucocorticoid injxn
what glucocorticoid is injected for acute pseudogout
triamcinolone
what other meds are used for acute pseudogout besides triamcinolone
NSAIDs → indomethacin
naproxen
salicylates
colchicine
systeic corticosteroids
what is the prophylactic tx for pseudogout
same as for gout →
consider if 3 or more attacks/year
cochicine
NSAID if colchicine intolerant
what is CPP inflammatory arthritis (pseudo RA)
inflammatory arthritis caused by CCP crystals in joint fluid
how is CCP/pseudo RA different from RA
asynchronous waxing and waning symptoms
what are the mc locations for CCP inflammatory arthritis/pseudo RA
wrists, elbows, glenohumeral joint
CCP inflammatory arthritis/pseudo RA usually affects joints in a
symmetric pattern
what is prophylactic tx for CCP inflammatory arthritis/pseudo RA
NSAIDs → naproxen, indomethacin
glucocorticoids → if NSAIDs ineffective
what is the mc location for OA w. CPPD (pseudo OA)
knees
also wrists, MCPs, hip, shoulders, elbow, spine
what are the symptoms for pseudo-OA
same as OA:
tenderness
bony enlargement
crepitus
restricted ROM
what is pseudoneuropathic joint dz
severe joint degeneration from CPP crystal deposition
what is the differentiating factor between pseudo-neuropathic joint dz and neuropathic arthropathy
no neurologic impairment in pseudo neuropathic arthropathy
what are the most common symptoms of fibromyalgia
- flu like pain in neck and shoulders
- HA
- dpn
- anxiety
fibromyalgia can also be associated w
dpn
ibs
cognitive problems
psychiatric symptoms
fibromyalgia mc affects
younger women
what is allodynia
response to nonpainful stimuli perceived as painful
what is hyperalgesia
pain perceived as more intense and lasting longer
pain w. fibromyalgia is commonly felt as
chronic pain/stiffness in all 4 quadrants
what will pe exam findings be for fibromyalgia
exam normal except for pain at tender points
what are tender points in fibromyalgia
soft tissue locations of pain
what are control locations in fibromyalgia
locations where there should be no pain