MTB 2 CK - Rheumatology Flashcards
Deposits of urate crystals with foreign body reaction. From longstanding gout
Composition of Tophi
Arthrocentesis (esp. to rule out infectious pathology)
Most accurate diagnostic test for gout
Acetaminophen (if not controlled, use NSAIDs like aspirin)
Best initial treatment for Osteoarthritis
Used in Acute attack in pts. resistant to NSAIDs or those with c/i to NSAIDs (renal insufficiency)
Corticosteroid role in management of gout
Used in patients with c/i to both NSAIDs and Steroids in acute attack; Chronic management to prevent second attack
Colchicine role in management of Gout
Used for chronic management (Febuxostat also acts via xanthine oxidase inhibition)
Allopurinol role in management of gout
Rarely used in chronic management (inc. secretion in kidneys)
Probenecid role in management of gout
Losartan (ARB) -also lowers uric acid; STOP thiazides
Rx for Hypertension in gout patient
Diarrhea, Neutropenia
Colchicine toxicity
Stevens-Johnson rash»_space; Toxic epidermal necrolysis
Allopurinol major toxicity
Hemochromatosis and HyperPTHism; minor: DM, Hypothyroidism, Wilson’s (calcium salts deposition in articular cartilage)
Risk factors for Pseudogout
CPPD disease (rhomboid shaped crystals)
Athrocentesis revealing positively birefringent crystals in ________________ disease
Gout (needle shaped crystals)
Athrocentesis revealing negatively birifringent crystals in _______________ disease
Aspirin (NOT Acetaminophen -its inflammatory disease)
Best initial drug for CPPD disease
Dissolves uric acid (useful in gout)
Pegloticase mechanism of action
S aurues epidural abscess
Signs of Cord compression with high fever and elevated ESR in _____________ pathology
Suspect cord compression (neurologic emergency)
Management of Pt. with a hx of cancer presenting with sudden onset neurologic deficit (sensory level)
Point tenderness over vertebra
Sensitive Clinical sign of Cord compression
disk herniation -50% chance only (can be present for other reasons too)
Pain upon Straight leg raise clinical significance
Disk herniation excluded -high sensitivity (negative PPV)
No pain upon straight leg raise clinical significance
L5
Dorsiflexion of toe affected in ___________ nerve root compression
L4
Dorsiflexion of foot affected in ____________ nerve root compression
S1
Eversion of foot affected in ______________ nerve root compression
Do not image (unless serious pathology suspected)
Best initial test for uncomplicated back pain