Rheumatology Flashcards
recurrent inflammatory condition of cartilage of joints, nose, ears, costal cartilage and airways that shows tracheal narrowing on XR - dx? tx?
Dx. relapsing polychondritis
Tx. high dose oral prednisone
intensely red, ulcerated and pedunculated mass that formed after minor trauma and bleeds easily - Dx? Tx?
Dx. pyogenic granuloma
Tx. shave and electrodessication OR excision
diagnostic criteria for RA (4 out of 8)
- morning stiffness > 1 hr
- wrist and finger (MCP, PIP)
- swelling of at least 3 joints
- symmetric involvement
- rheumatoid nodules
- XR abnormalities
- elevated CRP or ESP
- positive RF or anti-CCP
single most accurate test for dx. RA
anti-CCP (>95% specificity)
Felty’s syndrome
RA
splenomegaly
Neutropenia
MC involved joint in RA
MCP
Tests to order on CCS for RA
XR RF and anti-CCP level CBC (normochromic normocytic anemia) sedimentation rate (high) if there is an effusion --> joint aspiration
what joint in spared in RA
sacroiliac joint
standard of care for pts with RA
NSAID + DMARD
stepwise management of RA
- NSAID always - doesnt matter which one
- add Methotrexate
- if MTX fails, add anti-TNF (infliximab, etanercept, adalimumab)
DMARDs that can be used in RA
MTX anti-TNF hydroxychloroquine (only mild disease) rituximab (anti-CD20) anakinra (IL1 R antagonist) Toclizumab (IL6 R antagonist) Abatacept Leflunomide (similar in effect to MTX but less toxic)
s/e MTX
BM suppression
pneumonitis
what needs to be monitored if pt is on hydroxychloroquine
regular eye exam to check for retinopathy
role of steroids in managing RA
bridge to DMARD therapy when patient is acutely ill with severe inflammation
CF: ankylosing spondylitis
- young male with back pain/stiffness, >3 mths, better w/ exercise; pain worse at night, relieved by leaning forward
- limited ROM of lumbar spine; kyphosis
- diminished chest wall expansion
assoc. conditions with ankylosing spondylitis
eye = acute anterior uveitis, cataracts, cystoid macular edema
aortitis; valvular dz - AR, MVP
restrictive lung disease - apical pulmonary fibrosis
varicocele
GI - nonspecific ileal and colonic mucosal ulcerations
IgA nephropathy
Tx. ankylosing spondylitis
NSAIDS
Biologic agents – infliximab, adalimumab
Sulfasalazine
triad of knee pain, urinary difficulties dure to genital lesions and conjunctivitis in a patient with history of chlamydia, shigella, salmonella, yersinia or campylobacter infection - dx?
reactive arthritis
skin lesion characteristic of reactive arthritis
keratoderma blenorrhagicum
which joint is characteristically involved in psoriatic arthritis
DIP
Tx. reactive arthritis
NSAIDs
abx for acute infection
DMARDS: sulfasalazine, MTX if sulfa ineffective
progressive exercise
Tx. psoriatic arthritis
NSAIDs
if no response to NSAIDS –> start MTX
biologic anti-TNF also effective
dx criteria for juvenile RA
fever salmon-colored rash polyarthritis LAD myalgias hepatosplenomegaly elevated transaminases elevated WBCs, high ferritin level negative RF and ANA
Tx, JRA
NSAIDs
unresponsive cases with steroids
Pt presents with diarrhea, fat malabsorption, weight loss and joint pain - Dx? Test? Tx?
Dx. Whipple’s disease
Test: biopsy of small bowel (PAS + org)
Tx. ceftriaxone followed by TMP/SMX for a year
MC involved joint in osteoarthritis
DIP joints
Tx. osteoarthritis
acetaminophen
weight loss, exercise
what symptom is present in 95% of SLE patients?
fatigue
SLE
- best initial test (1)
- most specific test (2)
- ANA level
2. anti DS DNA or anti-Sm ab
best test to f/u severity of a flare in SLE
complement levels (decrease) anti-DS DNA (rises)
which abs are a risk factor for developing heart block in baby
anti-RO and anti-SSA ab
Tx. acute flare ups of SLE
steroids
Tx. rash and joint pain in SLE not responding to NSAIDs
hydroxychloroquine
anti-malarials
Tx. severe SLE relapse upon cessation of steroids
bemalimumab
azathioprine
cyclophosphamide
Tx. lupus nephritis
steroids + mycophenolate mofetil
Dx. criteria Osler-Weber Rendu
- recurrent epistaxis
- cutaneous telengiectasias
- proven visceral AV malformations
- first degree relative
CF in drug-induced lupus
- presence of anti-histone ab or positive ANA
- NEVER renal or CNS involvement
- complement and anti-DS DNA normal
drugs that may cause lupus
hydralazine procainamide isoniazid penicillamine minocycline diltiazem methyldopa chlorpromazine IFNalpha
most accurate test for diagnosing Sjogren’s syndrome
lip biopsy or salivary gland biopsy
Schirmer test
decreased wetting of paper held to eye
pts with sjogrens are at increased risk of what cancer
B cell NHL (polyclonal activation and infiltration of salivary glands)
Tx. Sjogrens
keep eyes and mouth moist
Cevimeline –> more specific for oral and ocular secretions (increase Ach which increases secretions)
Pilocarpine
ab in Scleroderma
anti-topoisomerase (anti-Scl 70)
Tx. scleroderma with renal involvement and HTN
ACEI
Tx. scleroderma with pulmonary HTN
bosentan, prostacyclin analogs, sildenafil
Tx. scerloderma (Raynauds)
CCBs - nifedipine, amlodipine, diltiazem (not verapamil)
Tx. GERD assoc. with scleroderma
PPIs
Tx. lung fibrosis secondary to scleroderma
cyclophosphamide
dx. testing CREST syndrome
anti-centromere abs
Pt presents with thickened skin that has a peau d’orange appearance; On labs, he has marked eosinophillia. Dx? Tx?
Dx. Eosinophilic fascitis
Tx. steroids
presence of anti-Jo1 ab in dermatomyositis greatly increases risk for what disaese?
interstitial lung disease
what tests should you order for patient with suspected dermatomyositis or polymyositis?
CPK, aldolase LFTs ANA EMG biopsy - single most accurate
Tx, dermatomyositis/polymyositis
steroids
Tx. fibromyalgia
- exercise
2. milnacipran, duloxetine, pregabalin - initial therapy
Tx. polymyalgia rheumatica
prednisone 10-20 mg/day (low dose)
if temporal arteritis involved –> 40-60 mg (high dose)
features of polyarteritis nodosa
vasculitis with additional findings of abdominal pain, renal involvement, testicular involvement, pericarditis, HTN, HEP B
best initial test for PAN
angiography of abdominal vessels
most accurate test for any vasculitis
biopsy!
Tx. PAN
prednisone
cyclophosphamide
lab test in Wegener’s granulomatosis
c-ANCA
lab findings in Churg Strauss
p-ANCA
anti-myeloperoxidase ab
eosinophillia
Tx. Churg Strauss
steroids
young asian female + diminished pulses who presents s/p TIA
Takayasu arteritis
Dx. Takayasu arteritis
aortic arteriography or MRA
Hep C + pt presents with fatigue, malaise, skin lesions, joint pain and renal issues - dx?
cryoglobulinemia
Tx. hep C assoc. with cryoglobulinemia
ribavirin and interferon
Tx. Behcets dz
prednisone
colchicines
things that can exacerbate an acute gouty attack
binge drinking alcohol
thiazides
nicotinic acid
cyclosporin
tests to order on CCS for gout
arthrocentesis (best initial) joint fluid examination: cell count, culture, protein serum uric acid level XR extremity examination for tophi
best initial therapy for acute gouty attack
NSAIDs - indomethacin, ibuprofen
- if insufficient response or C/I to NSAIDs (renal failure), use steroids
when is colchicine beneficial for gout
- first 24 hours of attack
- C/I to NSAIDs, such as renal insufficiency
- preventive therapy
which drugs lower the level of uric acid
allopurinol
probenicid
sulfinpyrazone
febuxostat
xanthine oxidase inhibitor
- used in gout if pt is intolerant of allopurinol
s/e allopurinol
rash
allergic interstitial nephritis
hemolysis
rasburicase/pegloticase
benign drugs that breakdown uric acid
- used if allopurinol or febuxostat is not enough
empiric therapy for septic arthritis
IV ceftriaxone and vancomycin
MC organisms causing septic arthritis
staph aureus
strep
gram negative bacili
best initial test for Paget’s disease
serum Ca and ALP level
- elevated ALP, normal Ca
most accurate test for Paget’s disease
XR
bone scan is more sensitive
for CCS, in case of Paget’s disease what tests should you order
ALP XR urinary hydroxyproline serum calcium level serum phosphate level bone scan
Tx. Paget’s disease
NSAIDs - pain
bisphosphonates - usual treatment
calcitonin
complications of Paget’s disease
bone fractures tumors high output heart failure hypercalcemia and nephrolithiasis compression neuropathy arthritis of adjacent bone hearing loss - 37% of pts
diagnostic testing for Baker’s cyst
none - clinical diagnosis
order an USG to excluse DVT
Tx. Baker’s cyst
NSAIDs
Tx. Mallet finger (extended finger is forcibly flexed)
extensor splinting for 4-5 weeks
tendinous injuries require 6-8 weeks
tests to order in pt with suspected fibromyalgia
CBC, ESR, TSH and muscle enzymes (CK)
if all normal, consider psych eval (30% have coexisting depression)
pt presenting with proximal muscle weakness and skin lesions - dx? in adults what is this related to often time
Dx. dermatomyositis
usually related to malignancy, esp in presence of RFs
CK levels > 10, 000 should make you think of what
rhabdomyolysis
CF: rhabdomyolysis
muscle tenderness increased muscle tone renal failure hyperkalemia hypocalcemia hyperphosphatemia
Tx. rhabdomyolysis
immediate isotonic saline hydration
alkalinization of the urine with bicarb
what should you suspect in pt presenting with isolated proximal muscle weakness and what test should you order?
myopathy
order - EMG
best initial test in pt with suspected ankylosing spondylitis
plain film XR of sacroiliac joint
how do you monitor disease progression in pts with ankylosing spondylitis
AP/lateral XR of lumbar spine
lateral XR of cervical spine
pelvic XR, incl sacroiliac joint and hips
acute phase reactants i.e. ESR
next step in management of pt with SLE presenting with kidney involvement
kidney biopsy
- treatment is based on pattern of glomerular involvement
Tx. Type I and II lupus nephritis
no therapy required
Tx. extensive Type III and all type IV lupus nephritis
IV methylprednisolone
Tx. type V lupus nephritis
tx with steroids when proliferative lesions are superimposed
when do you use cyclophosphamide for SLE nephritis
if steroids are inadequate or pt has severe disease
what can be used to monitor dz activity in SLE
anti-dsDNA and complement levels
which ab levels in SLE have been assoc with development of lupus nephritis
anti-dsDNA ab
what SLE symptoms is hydroxychloroquine useful for?
arthralgias
serositis
cutaneous symptoms
young, female pt presenting with chronic knee pain that is worse with squatting. on exam, she has pain on extension of the knee with anterior patellar compression - dx?
patellofemoral syndrome
pain and tenderness at inferior patella; usually in “jumping” sports
patellar tendonitis
tx. patellofemoral pain syndrome
exercises to stretch and strengthen the thigh muscles
localized pain/tenderness at medial aspect of knee joint distal to the joint line; usually acute in onset
anserine bursitis
localized tenderness at tibial tubercle
osgood schlatter
anterior knee pain, acute onset, with visible swelling anterior to patella; may be secondarily infected
prepatellar bursitis
lateral shoulder or deltoid pain aggravated by reaching or lifting the arms up
rotator cuff tendonitis/tear - weakness + loss of strength
impingement syndrome
frozen shoulder - stiffness + decreased ROM
causes of anterior shoulder pain
acromioclavicular or glenohumeral joint OA
biceps tendonitis
posterior shoulder pain
usually referred from cervical spine
- nerve impingement 2 to disc herniation
- spinal stenosis
tx. of acute gout attack in pt with renal failure
intra-articular corticosteroids
which lab finding may be present in pt with inflammatory myositis…
elevated serum ferritin levels (acute phase reactant)
tx. inflammatory myositis
high dose steroids –> prednisone, 1mg/kg