EXTRACTABLE NUCLEAR ANTIGENS (Anti-ENA) ANTIBODIES

Components
Includes anti-RNP and anti-Sm

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Severely hemolyzed or lipemic specimens

Methodology
Enzyme Immunoassay

Stability
Room Temperature: 8 hours; Refrigerated: 48 hours; Frozen: 14 days

Reference Range
Units   Interpretation  
<20   Negative  
20-39   Weak Positive  
40-80   Moderate Positive  
>80   Strong Positive  

Performed
Monday-Friday

Turnaround Time3 days
Test CodeAENA
CPT-4 Code (s)
86235 x 2
LOINC Codes
RNP   51928-0  
SM   43182-5  

Warde
Medical
Laboratory