Table 2.

Additional Laboratory Data.

Complement C3		98	mg/dL (73-138)
Complement C4		31.4	mg/dL (11-31)
Erythrocyte sedimentation rate		126	mm (0-15)
Anti-nuclear antibody		1:1,280	(Centromere pattern) (0-39.99)
Rheumatoid factor		24	IU/mL (0-14.99)
Anti-cyclic citrullinated peptide antibodies		1,412	U/mL (0-4.499)
Monoclonal rheumatoid factor binding immune complex		4.4	ug/mL (0-4.19)
Soluble interleukin-2 receptor		4,515	U/mL (121-613)
Proteinase 3 antineutrophil cytoplasmic autoantibody		0.2	U/mL (0-3.49)
Myeloperoxidase antineutrophil cytoplasmic autoantibody		<0.1	U/mL (0-3.49)

Numbers in parentheses indicate normal range.