Polymyalgia rheumatica laboratory findings
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Polymyalgia rheumatica is a clinical diagnosis that is supported by laboratory tests. Elevation in C-reactive protein (CRP) and/or erythrocyte sedimentation rate (ESR) is essential for the diagnosis of PMR.[1]
Laboratory Findings
The following laboratory findings are characteristic of PMR:[1]
- Elevated C-reactive protein (CRP)
- Elevated erythrocyte sedimentation rate (ESR)
- Absence of rheumatoid factor (RF)
- Absence of anti-citrullinated protein antibody (ACPA)
References
- ↑ 1.0 1.1 Dasgupta B, Cimmino MA, Maradit-Kremers H, Schmidt WA, Schirmer M, Salvarani C; et al. (2012). "2012 provisional classification criteria for polymyalgia rheumatica: a European League Against Rheumatism/American College of Rheumatology collaborative initiative". Ann Rheum Dis. 71 (4): 484–92. doi:10.1136/annrheumdis-2011-200329. PMC 3298664. PMID 22388996.