8 hours (initial IgA test); refer to individual test entries for reflexive testing.
Test Updated:
Celiac Panel
Looking to order a test?
We’ve provided helpful links to make ordering easy.
Find a RequisitionAll specimens should be accompanied by a requisition.
Submitting SpecimensLearn about how to properly label and where to ship specimens.
Order Kits and SuppliesMLabs provides all the supplies necessary for the collection of specimens.
Test FAQVisit our provider FAQ and learn about common questions to ordering tests.
Test Overview
Serum IgA (turbidimetric); Transglutaminase IgA/IgG Antibody (Multiplex Flow Immunoassay); Gliadin IgA/IgG Antibody (Multiplex Flow Immunoassay); Endomysial IgA (ELISA)
The Celiac Disease Algorithm is utilized to streamline the serological testing for the diagnosis of celiac disease. The algorithm initially orders a serum IgA. Depending on the IgA result, further testing is reflexively ordered and processed. If the serum IgA is very low (<6 mg/dL), transglutaminase IgG AB (TTGG) and Gliadin IgG AB (GLADG) are automatically performed. If the serum IgA low (>6, but below age matched reference range), transglutaminase IgG and IgA antibody tests (TTGG, TTGA), and Gliadin IgG and IgA antibody tests (GLADG, GLADA) are reflexively performed. If the initial serum IgA result is normal or elevated, transglutaminase IgA AB (TTGA) is performed. If the transglutaminase IgA AB is negative (<15) or positive (>30), no further testing is performed. Testing is complete. If the transglutaminase IgA AB is weakly positive (15-30), endomysial IgA AB (EMA) and gliadin IgA AB (GLADA) testing are reflexively performed.
Refer to individual test entries.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Specimen Requirements
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate for 7 days or freeze for longer storage.
