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Tissue Transglutamase Antibody, IgG

Mnemonic:    [TTG IGG]
Name:    Tissue Transglutamase Antibody, IgG
Specimen:    1 mL serum from a Red SST or Red top tube. Separate serum from cells ASAP. Plasma or severely lipemic or hemolyzed serum is unacceptable.
Minimum Spec:    0.5 mL
Transport Temp:    Refrigerated
Spec Stability:    Stable up to 2 weeks refrigerated.
Ref Lab/Code:    ARUP 0056009
Note:    The tTG IgG assay may aid in the diagnosis of gluten-sensitivity enteropathy (i.e., celiac disease, dermatitis herpetiformis) in tTG IgA negative patients with confirmed IgA deficiency. A negative tTG IgG test alone does not rule out gluten-sensitive enteropathy.