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Tissue Transglutaminase IgA (Coeliac) (Self-collect)**

Please post self-collected samples on the same day they are taken, avoid posting over weekends and bank holidays.



Sample Reqs

B (TDL Tiny)


2 days

Special instructions

** If Tissue Transglutaminase (TAA) is regulated and is LOW (<0.1U/ml) total IgA will be reflexed. If total IgA is low (<0.1g/L)deamidated gliadin IgG will be reflexed. If Tissue Transglutaminase (TAA) is HIGH (>10 U/ml), endomysial IgA will be reflexed as confirmatory test.

Self-collect kit


Sample type guide

B (TDL Tiny)

Gold Microtainer, SST, Top fill line: 400-600µL

Last-updated: 23/12/22


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