System | Characteristic | Diagnoses to consider | |
Constitutional | Sleep disorder | Fibromyalgia | |
Joints | Distribution | 1st metatarsophalangeal joint | Osteoarthritis, gout |
Carpometacarpal joint | Osteoarthritis | ||
Distal interphalangeal joints | Osteoarthritis, psoriatic arthritis, gout | ||
Digits 1 to 3 of hand | Carpal tunnel syndrome, pseudogout | ||
Morning lower back pain >1 hour | Spondyloarthritis | ||
Enthesitis (eg, Achilles tendonitis) | Spondyloarthritis | ||
Proximal joint stiffness (ie, shoulders and hips) | Polymyalgia rheumatica | ||
Proximal muscle weakness (ie, shoulders and hips) | Inflammatory myopathy | ||
Number | Monoarticular | Crystalline arthritis, Lyme arthritis, septic arthritis | |
Oligoarticular | Spondyloarthritis | ||
Characteristics | Triggering or locking of one or more digits of the hand | Stenosing tenosynovitis | |
Morning stiffness <1 hour | Noninflammatory etiologies | ||
Hyperextensible joints | Hypermobility syndrome | ||
Numbness and/or tingling | Carpal tunnel syndrome, neuropathy | ||
Joint pain remits spontaneously | Crystalline arthritis, palindromic rheumatism | ||
Infectious disease | Recent sick contacts or viral syndrome | Viral arthritis | |
Other evidence of infection (eg, fever, asthenia) | Septic arthritis | ||
Lyme disease endemicity | Lyme arthritis | ||
Mucocutaneous | Dry mouth/eyes | Sjögren's disease | |
Malar rash (ie, erythematous rash across nose and cheeks) | Systemic lupus erythematosus | ||
Discoid lesions (ie, thick, scaly, raised patch of skin) | Systemic lupus erythematosus | ||
Gottron's papules (ie, erythematous, scaly patches over extensor surfaces) | Dermatomyositis | ||
Nail changes | Psoriatic arthritis | ||
Psoriasis | Psoriatic arthritis | ||
Pulmonary | Dyspnea, cough | Inflammatory myopathy, systemic lupus erythematosus, scleroderma, sarcoidosis | |
Vascular | Raynaud phenomenon (ie, reversible digital ischemia) | Systemic lupus erythematosus, scleroderma | |
Gastrointestinal | Inflammatory bowel disease | Inflammatory bowel disease-associated arthritis | |
Bloody bowel movements | Inflammatory bowel disease-associated arthritis |
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