MTB 2 CK - Rheumatology Flashcards
Composition of Tophi
Deposits of urate crystals with foreign body reaction. From longstanding gout
Most accurate diagnostic test for gout
Arthrocentesis (esp. to rule out infectious pathology)
Best initial treatment for Osteoarthritis
Acetaminophen (if not controlled, use NSAIDs like aspirin)
Corticosteroid role in management of gout
Used in Acute attack in pts. resistant to NSAIDs or those with c/i to NSAIDs (renal insufficiency)
Colchicine 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
Allopurinol role in management of gout
Used for chronic management (Febuxostat also acts via xanthine oxidase inhibition)
Probenecid role in management of gout
Rarely used in chronic management (inc. secretion in kidneys)
Rx for Hypertension in gout patient
Losartan (ARB) -also lowers uric acid; STOP thiazides
Colchicine toxicity
Diarrhea, Neutropenia
Allopurinol major toxicity
Stevens-Johnson rash»_space; Toxic epidermal necrolysis
Risk factors for Pseudogout
Hemochromatosis and HyperPTHism; minor: DM, Hypothyroidism, Wilson’s (calcium salts deposition in articular cartilage)
Athrocentesis revealing positively birefringent crystals in ________________ disease
CPPD disease (rhomboid shaped crystals)
Athrocentesis revealing negatively birifringent crystals in _______________ disease
Gout (needle shaped crystals)
Best initial drug for CPPD disease
Aspirin (NOT Acetaminophen -its inflammatory disease)
Pegloticase mechanism of action
Dissolves uric acid (useful in gout)
Signs of Cord compression with high fever and elevated ESR in _____________ pathology
S aurues epidural abscess
Management of Pt. with a hx of cancer presenting with sudden onset neurologic deficit (sensory level)
Suspect cord compression (neurologic emergency)
Sensitive Clinical sign of Cord compression
Point tenderness over vertebra
Pain upon Straight leg raise clinical significance
disk herniation -50% chance only (can be present for other reasons too)
No pain upon straight leg raise clinical significance
Disk herniation excluded -high sensitivity (negative PPV)
Dorsiflexion of toe affected in ___________ nerve root compression
L5
Dorsiflexion of foot affected in ____________ nerve root compression
L4
Eversion of foot affected in ______________ nerve root compression
S1
Best initial test for uncomplicated back pain
Do not image (unless serious pathology suspected)
Best initial test for back pain with compression or infection suspected
CXR
Most accurate test for back pain with compression or infection suspected
MRI (do CT myelogram if MRI is contraindicated -pacemaker)
MRI indications in case of pain upon straight leg raise
Do MRI if accompanied by neuro deficits (isolated SLT pain is 50% of times not herniation)
Rx for Cord compression
Steroids for decompression; chemo/radiation for tumor -surgical decompression if fails
Initial treatment for Epidural abscess
Steroids to control acute neurologic deficits, Vancomycin/Linezolid until sensitivity is found; then switch to oxacillin/nafcillin + Gentamicin»_space; surgical drainage if resistant
Treatment for Disk herniation
NSAIDs with ordinary mobility»_space; Steroid injection (resistant)»_space; Surgery (rarely needed)
Important diseases to rule out in suspected spinal stenosis
PAD (vascular studies and physical findings are normal)
Spinal Stenosis clinical picture
Person > 60yrs, pain while walking radiating to buttocks and thighs b/l, worse on extending back/walking downhill, relieve in cycling/bending
Most accurate test to diagnose Spinal Stenosis
MRI
Spinal Stenosis Management
Weight loss, pain meds, Steroid injections, PT/exercise»_space; Surgical dilation of spinal canal in 75%
Fibromyalgia clinical picture
Young woman, chronic generalized MS pain and tenderness with trigger points
Best initial treatment for Fibromyalgia
amitriptyline and Milnacipran (SNRI specifically for Fibromyalgia)
Systemic disease that can cause Carpal Tunnel Syndrome
Pregnancy, Diabetes, RA, Acromegaly, Amyloidosis, Hypothyroidism
Most accurate diagnostic test for Carpal Tunnel Syndrome
Electomyography, Nerve Conduction Testing
Best initial therapy for Carpal Tunnel Syndrome
Wrist splints, avoidance»_space; Steroid injections and surgically cutting the flexor retinaculum in resistant cases
Best initial therapy for Rotator Cuff tear
NSAIDs, rest and physical therapy
Surgery indications for rotator cuff tears
Complete tear, failure to respond to NSAIDs, steroids and physical therapy
Patellofemoral Syndrome clinical picture
Anterior knee pain at patella that is worse just after starting to walk after prolonged sitting
Causes of Patellofemoral Syndrome
Trauma, imbalance of quadriceps strength, meniscal tear
Surgical indications of Patellofemoral syndrome
NO indication (nothing to fix)
Pain of _________________ (Tarsal tunnel syndrome/Plantar Fasciitis) improves with use
Plantar fasciitis (tarsal tunnel pain worsens)
Plantar fasciitis clinical picture
Very severe pain at the calcaneus with point tenderness
Rx for Dupuytren Contracture
Collagenase injection, Triamcinolone
Episcleritis is a feature of _____________ chronic inflammatory disease
RA
Vertebral joint commonly affected in RA
C1 and C2 (leading to subluxation)
Factors for point-based diagnoses of RA
Joint involvement (up to 5), ESR/CRP (1), >6 wks (1), RF/CCP (1) (6 points = RA)
Most common cause of death due to RA
Coronary artery disease (due to vasculitis)
RA with splenomegaly and neutropenia in _____________ syndrome
Felty Syndrome
RA with pneumoconiosis and lung nodules in _______________ syndrome
Caplan Syndrome