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Table 3 Serologic and laboratory data

From: Capillaroscopy as a diagnostic tool in the diagnosis of mixed connective tissue disease (MCTD): a case report

Lab Result Normal Range
ANA, HEp-2, IgG >  1:2560 (speckled) <  1:40
Smith-RNP Ab, IgG 135 AU/mL 0–40 AU/mL
Smith Ab, IgG 5 AU/mL 0–40 AU/mL
dsDNA Ab, IgG none detected none detected
SSA (Ro) Ab, IgG Negative 0–40 AU/mL
SSB (La) Ab, IgG 3 AU/mL 0–40 AU/mL
Scl-70 Ab, IgG 6 AU/mL 0–40 AU/mL
Centromere Ab, IgG 3 AU/mL 0–40 AU/mL
RNA polymerase III Ab, IgG 8 units 0–19 units
Beta-2-glycoprotein Ab, IgG/IgM 1 SGU/3 SMU 0–20 SGU/0–20 SMU
Cardiolipin Ab, IgG/IgM 3 GPL units/3 MPL 0–14 GPL units/0–12 MPL
CCP Ab, IgG <  0.5 unit/mL <  0.5 unit/mL
Rheumatoid factor <  9 IU/mL <  9 IU/mL
ESR 4 mm/h 0–15 mm/h
CRP 2.1 mg/dL 0–0.7 mg/dL
C3 112 mg/dL 83–152 mg/dL
C4 13 mg/dL 13–37 mg/dL
Creatine kinase 57 unit/L 55–370 unit/L
  1. ANA antinuclear antibody, HEp-2 human epidermoid cancer cells, RNP ribonucleoprotein, Ab antibody, dsDNA double-stranded deoxyribonucleic acid, SSA Sjögren’s syndrome related antigen A, SSB Sjögren’s syndrome related antigen B, Scl-70 topoisomerase I, RNA ribonucleic acid, CCP cyclic citrullinated peptide, ESR erythrocyte sedimentation rate, CRP c-reactive protein, C3 complement component 3, C4 complement component 4