Ribosomal P Protein Antibody
May be useful to detect central nervous system systemic lupus erythematosus (SLE), which is somewhat rare, or renal involvement in SLE.
Semi-Quantitative Multiplex Bead Assay
New York DOH Approval Status
Serum separator tube.
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Plasma or other body fluids. Bacterially contaminated or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
|29 AU/mL or less||Negative|
|41 AU/mL or greater||Positive|
Autoantibodies reacting with cytoplasmic ribosomes are highly specific for systemic lupus erythematosus. Ribosomal-P antibodies are found in approximately 12% of patients with systemic lupus erythematosus (SLE) and in 90% of patients with lupus psychosis; titers often increase more than fivefold during and before active phases of psychosis.
|Component Test Code*||Component Chart Name||LOINC|
|0099249||Ribosome P Antibody, IgG||13636-6|
- Anti-Ribosome P Antibodies
- Ribosomal P Antibodies
- Ribosome Antibody