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Test ID ENAE Antibody to Extractable Nuclear Antigen Evaluation, Serum

Useful For

Evaluating patients with clinical features suggestive of antinuclear antibody (ANA) associated connective tissue disease. May also be indicated in patients who test negative for ANA and have features of Sjogren syndrome and idiopathic inflammatory myopathies

Testing Algorithm

For more information see Connective Tissue Disease Cascade.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Frozen  21 days

Special Instructions

Reference Values

SS-A/Ro ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

 

SS-B/La ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

 

Sm ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

 

RNP ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

 

Scl 70 ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

 

Jo 1 ANTIBODIES, IgG

<1.0 U (negative)

≥1.0 U (positive)

Reference values apply to all ages.

Day(s) Performed

Monday through Saturday

CPT Code Information

86235 x 6

Report Available

Same day/1 to 2 days

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus OK
Heat-Treated Reject

Secondary ID

89035