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HelpTest Code LAB880 Antibodies to Extractable Nuclear Antigen Evaluation (ENAE)
Useful For
Evaluating patients with signs and symptoms of a connective tissue disease in whom the test for antinuclear antibodies is positive.
Methodology
Enzyme linked fluorescent immunoasay (EliA)
Profile Information
| Test Code: | Test Name: |
Available Separately |
Always Performed |
|---|---|---|---|
| LAB2001 | Sm (Smith D) Antibodies, IgG | Yes | Yes |
| LAB344 |
SSA/Ro Antibodies, IgG |
Yes | Yes |
| LAB345 |
SSB/La Antibodies, IgG |
Yes | Yes |
| LAB772 |
RNP Antibodies, IgG |
Yes | Yes |
| LAB771 |
Scl-70 Antibodies, IgG |
Yes | Yes |
| LAB1855 |
Centromere Antibodies, IgG |
Yes | Yes |
| LAB770 |
Jo-1 Antibodies, IgG |
Yes | Yes |
Performing Laboratory
Bozeman Outpatient Services at North 19th
Specimen Requirements
Specimen Type: Serum
Container/Tube: Red top or gold top
Specimen Volume: 3 mL
Specimen Minimum Volume: 1 mL
Collection Instructions: Centrifuge and separate serum from cells within 2 hours of collection.
Specimen Rejection:
1. Grossly hemolyzed or lipemic samples will be rejected.
2. Repeatedly freezing and thawing samples can cause analyte deterioration. Thaw only once.
Specimen Transport Temperature
Ambient <8 hours/Refrigerated >8 hours
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Ambient | 8 hours |
| Refrigerated | 7 days | |
| Frozen | 30 days |
Reference Values
| Test Component | Reference Value | Interpretation |
|---|---|---|
| Sm (Smith D) Antibodies, IgG |
<7.0 U/mL |
Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| SSA/Ro Antibodies, IgG | <7.0 U/mL | Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| SSB/La Antibodies, IgG | <7.0 U/mL | Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| U1RNP Antibodies, IgG | <5.0 U/mL | Negative |
| 5.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| Scl-70 Antibodies, IgG | <7.0 U/mL | Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| Centromere Antibodies, IgG | <7.0 U/mL | Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive | |
| Jo-1 Antibodies, IgG | <7.0 U/mL | Negative |
| 7.0-10.0 U/mL | Equivocal | |
| >10.0 U/mL | Positive |
Day(s) Test Set Up
Monday, Wednesday, and Friday
Test Classification and CPT Coding
86235 x 7