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Test Code BLOD0461 Reticulin Antibodies, Serum

Additional Codes

Mayo Test Code: RTA

Useful For

Investigation of celiac disease (CD)


Reticulin antibodies are no longer considered useful in the diagnosis of CD. Mayo Medical Laboratories recommends ordering TTGA / Tissue Transglutaminase (tTG) Antibody, IgA, Serum or EMA / Endomysial Antibodies (IgA), Serum for evaluation of patients suspected of CD or dermatitis herpetiformis.

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type


Specimen Required


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 14 days
  Frozen  14 days

Reference Values


If positive, results are titered.


Reference values apply to all ages.

Day(s) and Time(s) Performed

Monday through Sunday; 11 a.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information


86256-Titer (if appropriate)

Reject Due To


Mild OK; Gross reject


Mild OK; Gross reject


Mild OK; Gross OK



Method Name

Indirect Immunofluorescence


If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request Form (T728) with the specimen (