| Field Name |
Data Description |
| Test Name |
ENA |
| Code |
ENA |
|
CPT Code |
86235x2 |
| Last Modified |
4/22/2014 |
| Test Name |
EXTRACTABLE NUCLEAR ANTIGEN |
| Synonyms |
anti SM IgG and anti SM/RNP |
| Patient Preparation |
|
| Spec. Requirements |
Blood |
| Tube |
Gold or Red tube |
| Collection Volume |
3.0 mL Gold or 4.0 mL Red |
| Storage |
Refrigerated |
| Routine TAT |
1-3 days |
| STAT TAT |
|
| Days Test Performed |
Monday, Wednesday, Friday |
| Performed by BHS |
Baptist Medical Center |
| See Availability |
7 - 3 Shift |
| Reference Lab |
N/A |
| Reference Lab Code |
|
| Clinical Use |
Detect antibodies associated with SLE and mixed connective tissue disease. Anti-Sm is highly specific for SLE. Anti-RNP is found with a variety of rheumatoid diseases with high titers associated mainly with MCTD. |
| Reference Range |
|
| Critical Value |
|
|
Component |
U1 RNP/snRNP ABS |
|
Reference Range |
Not Detected |
|
Critical Value |
|
 |
|
Component |
Sm (Smith) ABS |
|
Reference Range |
|
|
Critical Value |
|
|
|
Component |
U1 RNP/snRNP ABS - Reflex |
|
Reference Range |
|
|
Critical Value |
|
|
|
Component |
Sm (Smith) ABS - Reflex |
|
Reference Range |
|
|
Critical Value |
|
|
|
| Testing Sample Type |
Serum |
| Min Lab Testing Volume |
1 (0.5) mL |
| Special Handling |
|
| Lab Notes |
|
| Methodology |
(EIA) |
| Limitations |
|
