ARUP's Laboratory Test Directory

0051668: Connective Tissue Diseases Profile

Test Mnemonic: CONN
Methodology: Multi-Analyte Fluorescent Detection

Performed: Sun-Sat

Reported: 1-2 days

Specimen Required:  
Collect: One 4 mL SST.

Transport: 1 mL serum at 2-8°C. (Min: 0.5 mL) Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport: 0.3 mL serum at 2-8°C.

Remarks: Remove serum from cells ASAP.

Unacceptable Conditions: Plasma and other body fluids.  Bacterially contaminated specimens.

Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval:
 
Test Number Components Reference Interval
0050085Smith (ENA) Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0050470RNP (U1) (Ribonucleic Protein) (ENA) Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0050691SSA (Ro) (ENA) Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0050692SSB (La) (ENA) Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0099592Jo-1 Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0099249Ribosomal P Protein Antibody 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0050714Centromere Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive
0050599Scleroderma (Scl-70) (ENA) Antibody, IgG 29 AU/mL or less: Negative
30-40 AU/mL: Equivocal
41 AU/mL or greater: Positive

CPT Code(s):
86235 x7 ENAs; 86039 Centromere