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Tissue transglutaminase IgG-4888

Test info

Test name:

Tissue transglutaminase IgG

Test number:

4888

Excellian order number:

83516.1

Abbreviation:

TTG

Alternate names:

Celiac disease
TTG IgG Aby
TTGG
TTG IGGT-Transglutaminase

Useful for:

Detection of antibodies to aid in the diagnosis of gluten-sensitive enteropathy (GSE), such as celiac disease and dermatitis herpetiformis

Specimen

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

1.0 mL

Minimum volume:

0.5 mL

Collection instructions:

Immediatley following collection, mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube, 5 mL

Alternate processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Refrigerated (preferred) - 14 days

Frozen - 14 days

Ambient - 14 days

Reason for rejection:

Hemolysis
Lipemia
Gross bacterial contamination

Performance

Performing lab:

LabCorp Burlington (164988); R-LC

Days set up:

TAT:

3 - 5 days

Method:

Enzyme-linked immunosorbent assay (ELISA)

Clinical and Interpretive info

Reference ranges:

Negative: <6 U/mL

Weak positive: 6 - 9 U/mL

Strong positive: >9 U/mL

Billing

CPT codes:

86364

Hospital EAP/charge code:

17027679

Clinic EAP/charge code:

308636401

Tracking

Date created:

11/17/2015

Revised date:

04/22/2025

Review date:

04/22/2025