Rheum Flashcards
(108 cards)
causes of acute joint pain (typically just 1 joint)
trauma
infection
crystal
reactive
athrocentesis of OA
serous
<2000 WBCs, 25% PMNs
no crystals
athrocentesis of septic joint
pus opaque white fluid
>50,000 WBCs
+ gram stain and culture - if no staph check for gonorrhea
arthrocentesis of inflammatory joint
cloudy
>2000 - <50,00 WBCs (10,000)
>50% PMNs
+/- crystals
+ ANA =
SLE
+ RF
RA
+ anti citrullinated c peptide
RA
+ ds DNA ab
SLE and lupus nephritis
+ Anti histone ab
drug induced lupus
+ anti centromere
scleroderma
CREST
+ topoisomerase (Scl 70)
systemic scleroderma
+ smooth muscle ab
autoimmune hepatitis
anti Ro
anti La
sjogrens
anti Jo ab
polymyositis
dermatomysositis
anti mitochondrial ab
Primary biliary sclerosis
SLE path
autoimmune complex
F > M
Black > white
SLE presentation
4/11
Malar rash - butterfly - (spares nasolabial folds) Discoid rash Serositis (pleuritic CP) Oral ulcers Arthritis (large joints) Photosensitivity (sunburn) Blood (amenia, thrombocytopenia) Renal failure (nephritis) ANA + Immunologic Neuro (cerebritis, psychosis, AMS)
complications of SLE
endocarditis - vegetations on both sides of the valve
ESRD
Miscarriages
dx of SLE
1st - ANA (sensitive but not specific)
2nd - ds DNA (nephritis), anti smith, antihistone (drug induced)
ESR and CRP
complement levels - low C3 and low C4
tx of SLE
hydroxychloroquine - ADR - retinopathy
steroids (flare)
nephritis - IV cyclophospamide –> oral mycophenolate
drug induced lupus
path and pt presentation
path - antihistone
presentation - rash and pain after taking a medication
dx and tx of drug induced lupus
- medication reconciliation
- antihistone ab
tx - remove offending agent
medications that cause drug induced lupus
hydralazine
procainamide
methyldopa
lupus nephritis
path and pt presentation
path - ds DNA abs
pt - asx - U/A micro –> proteinuria
or
pt - HTN, massive proteinuria, hematuria