Rheumatology Flashcards
(128 cards)
A woman > 50 y/o presents with at least 6 weeks of symmetrical joint pain and morning stiffness involving multiple joints of the hands and lasting for more than 1 hour in the morning most likely suffers from ..
Rheumatoid arthritis
What are 8 possible criteria for diagnosing rheumatoid arthritis? (of which you only need 4)
- morning stiffness lasting more than 1 hour
- wrist and finger involvment (PIP, MCP)
- swelling of at least 3 joints (except sacroilliac)
- symmetrical
- presence of rheumatoid nodule
- X-ray abnormalities showing erosions
- positive rheumatoid factor (RF) or anti-CCP
- elevated C-reaction protein (CRP) or ESR
What is the single most accurate test for rheumatoid arthritis?
Anti- cyclic citrulinated peptide (anti-CCP)
A pt presenting with rheumatoid arthritis, splenomegaly and neutropenia most likely suffers from …
Felty’s syndrome
What is the most important step in management prior to intubating a pt with rheumatoid arthritis?
check for C1/C2 cervical spine subluxation
…. is flexion of the proximal interphalangeal (PIP) joint with hyperextension of the distal interphalangeal (DIP) joint
Boutonniere deformity
associated with rheumatoid arthritis
… is extension of the proximal interphalageal (PIP) joint with flexion of the distal interphalageal (DIP) joint
Swan neck deformity
associated with rheumatoid arthritis
What are the 4 criteria involved in the new alternate diagnostic criteria for rheumatoid arthritis?
- synovitis (can be single joint)
- positive rheumatoid factor (RF) or anti-CCP
- elevated ESR or CRP (C-reactive protein)
- prolonged duration (>6 weeks)
What is the characterisitic hematologic finding in rheumatoid arthritis?
normocytic, normochromic anemia
What are the initial steps in management of a suspected rheumatoid arthritis pt? (7)
- X-rays (erosions)
- Rheumatoid factor
- anti-CCP
- CBC (anemia)
- ESR
- CRP (C-reactive protein)
- aspiration of joint (if effusion present)
What is the best initial therapy for rheumatoid arthritis?
NSAIDs with methotrexate (a disease modifying anti-rheumatic drug- DMARD)
What are the adverse side effects of methotrexate?
- bone marrow suppression
- pneumonitis
- liver disease
What is the next best step in management of a pt with rheumatoid arthritis in which NSAIDs and methotrexate have not been successful?
add biologic agents (infliximab, adalimumab, etanercept block TNF)
What is an adverse side effect of using hydroxycholorquine (type of DMARD)?
retinopathy (pt will require regular eye exams)
What is an adverse side effect of using sulfasalazine (type of DMARD)?
bone marrow suppresion
What is the mechanism of action of rituximab (alternate DMARD)?
anti-CD20 antibody
What is the mechanism of action of anakinra (alternate DMARD)?
IL-1 receptor antagonist
What is the mechanism of action of tocilizumab (alternate DMARD)?
IL-6 receptor antagonist (added to methotrexate if needed)
What is the mechanism of action of leflunomide (alternate DMARD)?
pyrimidine antagonist (less toxic than methotrexate)
What is the mechanism of action of abatacept (alternate DMARD)?
inhibits T-cell activation
What is the major side effect of gold salts (used as alternate DMARD)?
nephrotic syndrome
An acutely ill rheumatoid arthritis pt with severe inflammation should receive what other medication other than NSAIDs and a DMARD as initial therapy?
steroids such as prednisone (bridge to DMARD therapy; allow time for DMARD to take effect)
A young male pt (
Ankylosing Spondylitis
also associated with uveitis, aortitis, restrictive lung disease
What is the most accurate diagnostic test for ankylosing spondylitis?
MRI of sacroilliac joint