Antibodies, Anti-Cyclic Citrullinated Peptide
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Anti-CCP antibodies, ACPA.
To assist in diagnosing and monitoring rheumatoid arthritis.
Serum collected in a gold-, red-, or red/gray-top tube.
IgG Ab (Method: Immunoassay, enzyme-linked immunosorbent assay [ELISA])
|Negative||Less than 20 units|
|Weak positive||20–39 units|
|Moderate positive||40–59 units|
|Strong positive||60 units or greater|