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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Side-by-side3 compared
Focus
Comparevs
Dimension
Osteoarthritis
Rheumatoid Arthritis
Gout
Pathophysiology & risk
- Cartilage wear-and-tear
- Non-inflammatory (degenerative)
- Age, obesity, joint overuse
- Autoimmune synovitis
- Pannus erodes cartilage and bone
- Women, genetic (HLA-DR4)
- Monosodium urate crystal deposition
- Hyperuricemia
- Purines, alcohol, thiazide diuretics
Signs & symptoms
- ★Heberden (DIP) & Bouchard (PIP) nodes
- Asymmetric: hips, knees, DIPs
- AM stiffness < 30 min
- Pain worse with use, eases with rest
- Symmetric small joints (MCP, PIP, wrist)
- AM stiffness >1 hr, eases with use
- Ulnar deviation, swan-neck
- ★Acute monoarticular — 1st MTP (podagra)
- Sudden onset, often at night
- Red, hot, swollen joint
- Tophi if chronic
Diagnostics & labs
- Normal ESR/CRP
- X-ray: narrowed space, osteophytes
- ★RF + and anti-CCP +
- ↑ ESR/CRP
- Symmetric erosions on X-ray
- ★Joint fluid: needle-shaped urate crystals
- Uric acid > 6.8 (can be normal in flare)
Nursing priorities
- Heat for stiffness
- Cane opposite the painful hip/knee
- Balance activity with rest
- Start DMARDs early to prevent erosion
- Splint in functional position
- Heat for stiffness
- Balance activity with rest
- Rest + elevate joint during acute flare
- Fluids 2–3 L/day (prevents stones)
- Bed cradle — keep sheets off joint
Treatment & meds
- Acetaminophen, topical NSAIDs
- No DMARDs (not autoimmune)
- Joint replacement if severe
- Methotrexate is gold-standard DMARD
- Low-dose steroids bridge until DMARD works
- Biologics (TNF inhibitors) if needed
- Acute: colchicine, NSAIDs, or steroids
- Chronic: allopurinol or febuxostat
Patient teaching
- Weight loss to unload joints
- Low-impact exercise
- MTX: avoid alcohol, take folic acid
- Report fever, sore throat (infection)
- Low-impact exercise
- Avoid organ meat, shellfish, beer
- Don't stop allopurinol during a flare
Red flags — escalate
- Function loss → joint replacement eval
- Atlantoaxial (C1–C2) instability
- Vasculitis
- Severe systemic flare
- Uric acid kidney stones
- Recurrent flares
Complications
- Loss of mobility (hip/knee)
- Joint destruction, deformity
- Lung, eye, and CV involvement
- Tophi
- Chronic gouty arthritis
- Urate nephropathy
Pathophysiology & risk
Osteoarthritis
- Cartilage wear-and-tear
- Non-inflammatory (degenerative)
- Age, obesity, joint overuse
Rheumatoid Arthritis
- Autoimmune synovitis
- Pannus erodes cartilage and bone
- Women, genetic (HLA-DR4)
Signs & symptoms
Osteoarthritis
- ★Heberden (DIP) & Bouchard (PIP) nodes
- Asymmetric: hips, knees, DIPs
- AM stiffness < 30 min
- Pain worse with use, eases with rest
Rheumatoid Arthritis
- Symmetric small joints (MCP, PIP, wrist)
- AM stiffness >1 hr, eases with use
- Ulnar deviation, swan-neck
Diagnostics & labs
Osteoarthritis
- Normal ESR/CRP
- X-ray: narrowed space, osteophytes
Rheumatoid Arthritis
- ★RF + and anti-CCP +
- ↑ ESR/CRP
- Symmetric erosions on X-ray
Nursing priorities
Osteoarthritis
- Heat for stiffness
- Cane opposite the painful hip/knee
- Balance activity with rest
Rheumatoid Arthritis
- Start DMARDs early to prevent erosion
- Splint in functional position
- Heat for stiffness
- Balance activity with rest
Treatment & meds
Osteoarthritis
- Acetaminophen, topical NSAIDs
- No DMARDs (not autoimmune)
- Joint replacement if severe
Rheumatoid Arthritis
- Methotrexate is gold-standard DMARD
- Low-dose steroids bridge until DMARD works
- Biologics (TNF inhibitors) if needed
Patient teaching
Osteoarthritis
- Weight loss to unload joints
- Low-impact exercise
Rheumatoid Arthritis
- MTX: avoid alcohol, take folic acid
- Report fever, sore throat (infection)
- Low-impact exercise
Red flags — escalate
Osteoarthritis
- Function loss → joint replacement eval
Rheumatoid Arthritis
- Atlantoaxial (C1–C2) instability
- Vasculitis
- Severe systemic flare
Complications
Osteoarthritis
- Loss of mobility (hip/knee)
Rheumatoid Arthritis
- Joint destruction, deformity
- Lung, eye, and CV involvement
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Clinical Pearl
OA = big joints, no labs. RA = small joints, symmetric, RF+. Gout = great toe, uric acid crystals.
Component Topics
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Go further
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- TopicOsteoarthritisThe most common joint disease worldwide is often dismissed as 'just aging' — but confusing it with rheumatoid arthritis on the NCLEX will cost you the question every time.
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