multi class comparison

Arthritis Comparison: Osteoarthritis vs Rheumatoid Arthritis vs Gout — Joint Pattern, Labs, Treatment

An NCLEX question gives you a client with joint pain, morning stiffness, and a swollen first toe — and three answer choices with completely different medications. Picking the wrong arthritis means picking the wrong drug. The joint pattern, lab marker, and stiffness duration are your fastest discriminators.

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Comparison

Side-by-side3 compared
Comparevs
Dimension
Osteoarthritis (OA)
Rheumatoid Arthritis (RA)
Gout
Pathophysiology & risk
  • Cartilage wear-and-tear
  • non-inflammatory
  • Age, obesity, joint overuse
  • Autoimmune synovitis
  • pannus destroys joint
  • Women, genetic (HLA-DR4)
  • Monosodium urate crystal deposition
  • Hyperuricemia
  • purines, alcohol, diuretics
Signs & symptoms
  • ★Heberden (DIP) & Bouchard (PIP) nodes
  • Asymmetric DIP
  • AM stiffness <30 min, eases at rest
  • Symmetric small joints (MCP, PIP, wrist)
  • AM stiffness >1 hr, eases with use
  • ulnar deviation
  • ★Acute monoarticular — 1st MTP (podagra)
  • Sudden nocturnal
  • red hot tender
  • tophi if chronic
Diagnostics & labs
  • Normal ESR/CRP
  • X-ray: joint-space narrowing, osteophytes
  • ★RF + and anti-CCP +
  • ↑ ESR/CRP
  • symmetric erosions on X-ray
  • ★Synovial fluid: needle-shaped urate crystals
  • Uric acid > 6.8 (may be normal in flare)
Nursing priorities
  • Joint protection
  • heat
  • assistive devices
  • Balance activity with rest
  • Start DMARDs early to prevent erosion
  • ROM exercises
  • splint in functional position
  • Rest + elevate joint during acute flare
  • Hydrate
  • avoid pressure on joint
Treatment & meds
  • Acetaminophen first, then NSAIDs
  • No DMARDs
  • joint replacement if severe
  • Methotrexate is gold-standard DMARD
  • NSAIDs for symptoms
  • biologics if needed
  • Acute: colchicine, NSAIDs, or steroids
  • Chronic: allopurinol or febuxostat
Patient teaching
  • Weight loss
  • low-impact exercise
  • MTX: avoid alcohol, take folic acid
  • Report sore throat/fever (immunosuppression)
  • Avoid purines: organ meat, shellfish, beer
  • Don't start/stop allopurinol during a flare
Red flags — escalate
  • Progressive disability then replacement eval
  • Atlantoaxial (C1–C2) instability
  • Vasculitis
  • severe systemic flare
  • Urate nephrolithiasis
  • recurrent flares
Complications
  • Chronic pain, joint deformity, disability
  • Joint destruction
  • lung/eye, CV disease
  • Tophi
  • chronic gouty arthritis
  • urate nephropathy
Pathophysiology & risk

Osteoarthritis (OA)

  • Cartilage wear-and-tear
  • non-inflammatory
  • Age, obesity, joint overuse

Rheumatoid Arthritis (RA)

  • Autoimmune synovitis
  • pannus destroys joint
  • Women, genetic (HLA-DR4)
Signs & symptoms

Osteoarthritis (OA)

  • ★Heberden (DIP) & Bouchard (PIP) nodes
  • Asymmetric DIP
  • AM stiffness <30 min, eases at rest

Rheumatoid Arthritis (RA)

  • Symmetric small joints (MCP, PIP, wrist)
  • AM stiffness >1 hr, eases with use
  • ulnar deviation
Diagnostics & labs

Osteoarthritis (OA)

  • Normal ESR/CRP
  • X-ray: joint-space narrowing, osteophytes

Rheumatoid Arthritis (RA)

  • ★RF + and anti-CCP +
  • ↑ ESR/CRP
  • symmetric erosions on X-ray
Nursing priorities

Osteoarthritis (OA)

  • Joint protection
  • heat
  • assistive devices
  • Balance activity with rest

Rheumatoid Arthritis (RA)

  • Start DMARDs early to prevent erosion
  • ROM exercises
  • splint in functional position
Treatment & meds

Osteoarthritis (OA)

  • Acetaminophen first, then NSAIDs
  • No DMARDs
  • joint replacement if severe

Rheumatoid Arthritis (RA)

  • Methotrexate is gold-standard DMARD
  • NSAIDs for symptoms
  • biologics if needed
Patient teaching

Osteoarthritis (OA)

  • Weight loss
  • low-impact exercise

Rheumatoid Arthritis (RA)

  • MTX: avoid alcohol, take folic acid
  • Report sore throat/fever (immunosuppression)
Red flags — escalate

Osteoarthritis (OA)

  • Progressive disability then replacement eval

Rheumatoid Arthritis (RA)

  • Atlantoaxial (C1–C2) instability
  • Vasculitis
  • severe systemic flare
Complications

Osteoarthritis (OA)

  • Chronic pain, joint deformity, disability

Rheumatoid Arthritis (RA)

  • Joint destruction
  • lung/eye, CV disease

★ marks the fact that sets a column apart.

Clinical Pearl

OA = big joints, no labs. RA = small joints, symmetric, RF+. Gout = great toe, uric acid crystals.

Component Topics

GoutOsteoarthritisRheumatoid Arthritis

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