text: Laboratory<unk>  consistent with the diagnosis of<unk>  arthritis include elevated erythrocyte sedimentation rate (ESR), elevated C-reactive protein (CRP), and elevated total leukocyte count (TLC) showing increased polymorphonuclear cells (PMNs). Synovial fluid or synovial membrane biopsy for detection of bacterial DNA by polymerase chain reaction (PCR) or immunofluorescence microscopy.
option_0: Reactive arthritis laboratory findings
option_1: Polymyalgia rheumatica laboratory findings
option_2: Septic arthritis laboratory findings
option_3: Sjögren's syndrome laboratory findings
option_4: Dermatomyositis laboratory findings
option_5: Scleroderma laboratory findings
option_6: Polymyositis and dermatomyositis laboratory findings
option_7: Osteoarthritis laboratory findings