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Epic Code LAB7230 Tissue Transglutaminase (tTG), Antibody, IgA

Test Name Alias

Transglutaminase IgA Antibodies | Tissue Trans | ttg | 4152

Interface Order Alias

10485

Clinical Information

Patients with IgA deficiency may have falsely negative results.

Collection Instructions

Specimen Collection: Blood

Container(s): Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 5.0 mL

Minimum Volume to Collect: 2.0 mL

Neonate Volume to Collect: 2.0 mL

Capillary collect ok: Yes

Microtainer acceptable: Yes

Collection Instructions:

  • Gently invert gold tube(s) 8 - 10 times to mix clot activator with blood.
  • Specimen should be processed within 2 hours – See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site collection)

Processed Specimen: Serum

Centrifuge/Spin: Yes

Aliquot: No

Processing Instructions:

  • Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.

Transport Temperature: Refrigerate

Rejection Criteria

Specimen not centrifuged within 2 hours

Specimen Stability

Ambient: 8 hours

Refrigerate: 7 days

Frozen: Aliquot serum for longer storage (-20°C)

Laboratory Retention: 7 days

Test Frequency

Available Monday through Friday, usual TAT 1 to 3 days

Reference Range

 

<7.0 U/mL Negative
7.0-10.0 U/mL Equivocal
>10 U/mL Positive

 

Performing Department

IMMUNOCHEMISTRY

Performing Department Laboratory Location

Spectrum Health Regional Laboratory, Grand Rapids, MI

Methodology

EliA Fluorescence Enzyme Immunoassay (FEIA)

CPT

83516

CDM Code

4088875

Epic Test ID

1230101236

LOINC

Transglutaminase Ab IgA: 31017-7

Transglutaminase IgA Interp: 8251-1

Beaker LOINC

TRANSGLUTAMINASE IGA ANTIBODIES: 46128-5

Mayo Access Code

SHO4152

Reviewed Date

12/13/2021

Beaker Names

Beaker Procedure Name: TISSUE TRANSGLUTAMINASE IGA
Beaker Display Name: Tissue Transglutaminase (tTG) Antibody, IgA
BEAKER TEST NAME: TRANSGLUTAMINASE IGA ANTIBODY
BEAKER TEST REPORT NAME: Transglutaminase IgA Antibody

Beaker Synonyms

No synonym on file

Beaker Collection and Specimen Handling

BEAKER COLLECTION: +(2)S/R

Beaker Location, Container and Temperature

BW IMMUNOCHEM: GOLD TOP SST TUBE R (Preferred)-Refrigerated