Tissue Transglutaminase (tTG) IgA Antibodies, Serum

Reporting Title

Tissue Transglutaminase Ab

Bio-Flash Chemiluminescent Immunoassay

Useful in the diagnosis of celiac disease.

OhioHealth Laboratory Services-RMH Special Testing

Draw blood in a gold-top or a speckled-top serum gel tube(s). Spin down and send 1 mL of serum refrigerated.

Note: Hemolyzed of icteric specimens are not acceptable.

Note: Plain, red-top tube(s) is also acceptable.

Specimen Stability Information

Specimen Type	Temperature	Time
Serum	Refrigerated	5 days
	Frozen	21 days

Refrigerate: OK

Frozen: OK

Negative: <20 CU

Weak Positive: 20-30 CU

Positive: >30 CU

Monday through Friday day shift only

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