IM-Rheuma and Immu Flashcards
Clear, viscous, amber-colored, WBC <2000/ul
Predominance of mononuclear cells
Non-inflammatory fluid
E.g Gout
Clear or pale straw, viscous
Normal synovial fluid
Opaque, purule t, WBC >50000/ul
PMN predominance
Reduced viscosity
Septic fluid
Turbud, yellow, WBC 2000-50000/ul
PMN predominance, reduced viscosity
Little or no tail following each drop
Inflammatory fluid
Differentiate OA from RA in
Morning stiffness duration
Joints involves
Joint fluid leukocyte count
Treatment
OA <30min DIP, PIP <2000 leukocyte Acetaminophen: initial analgesic of choice NSAID: most popular
RA >1hr MCP, PIP >5000-50000 leukocyte \+RF, +anti CCP DMARDs (Methotrexate)
Severe OA of hands affecting DIP
Severe OA of hands affecting PIP
Heberden’s nodes
Bouchard’s nodes
Pathologic hallmarks of RA
Frequent hallmark of RA
Define
Boutonniere deformity
Swan-neck deformity
Z-line deformity
Synovial inflammation
Flocal bone erosions
Thinning of articular cartilage
Flexor tenosynovitis
Flexion of PIP, hyperextension of DIP
Hyperextension of PIP, flexion of DIP
Subluxation of 1st MCP, hyperextension of 1st IP
Felty’s syndrome TRIAD
Nodular RA
Splenomegaly
Neutropenia
Most common hematologic abnormality of RA
Most common pulmonary manifestation of RA
Most common valvular abnormality of RA
Initial radiographic finding of RA
normocytic normochromic anemia
Pleuritis
Mitral regurgitation
Periarticular osteopenia
Most common early clinical manifestation of gout
Classic initial presentation of gout
Diagnostic test for gout
Drugs that causes hyperuricemia
Acute arthritis (1st MTP)
Podagra
Arthrocentesis
Thiazide
Niacin
Alcohol
Differentiate gout from pseudogout microscopically
Gout
Negatively birefringent
Needle-shaped
monosodium urate crystals
Pseudogout
Positively birefringent
Rhomboid-shaped
Calcium pyrophosphate dehydrate crystals
Mainstay of tx suring acute gouty attack
Hypouricemic therapy for:
- Underexcreter
- Overproducer
NSAID 1st line (indometha kn, naproxe , ibuprofen, diclofenac, celecoxib)
Colchicine
Glucocorticoids
- Probenecid, benzbromarone, sulfunpyrazone
- Allopurinol, febuxostat
SLE drugs for non life threatening dse:
Mainstay
Arthritis/arthralgia
Dermatitis
SLE drugs for life threatening dse:
Mainstay
Lupus nephritis
Severe thrombocytopenia
Disease relapse
Analgesics and antimalaris
NSAIDS
Antimalarials (hydroxychloroquine, chloroquine, quinacrine)
Systemic glucocorticoids PO/IV
High dose glucocorticoid pulse
High dose glucocorticoid pulse
Cyclophosphamide (nausea), Azathioprine, Mycophenolate mofetil (diarrhea)
Drug-induced lupus causes
(+) antihistone
Hydralazine Isoniazid Phenytoin Procainamide PTU Statins Sulfalazine Nitrofurantoin
Most serious manifestation of SLE
Leading cause of mortality on the first decade
Most common manifestation of
- diffuse CNS lupus
- Pulmonary
- Cardiac
- Serious cardiac
- Valvular involvement
- Musculoskeletal
- Cutaneous
Nephritis
Nephritis and infection
- Cognitive dysfunction
- Pleuritis
- Pericarditis
- Myocarditis, libman sacks endocarditis
- Mitral or aortic
- Arthralgia/myalgia
- Photosensitivity