Expected turnaround time for a result, beginning when ARUP has received the specimen.
1-2 days
New York DOH Approval Status
Indicates test has been approved by the New York State Department of Health.
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect
Serum separator tube.
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 3 mL serum to an ARUP Standard Transport Tube. (Min: 1.5 mL)
Storage/Transport Temperature
Refrigerated.
Unacceptable Conditions
Plasma. Contaminated, hemolyzed, grossly icteric or grossly lipemic specimens.
Remarks
Stability
After separation from cells: Ambient: Unacceptable; Refrigerated: 14 days; Frozen: 6 months (avoid repeated freeze/thaw cycles)
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Test Number
Components
Reference Interval
Immunoglobulin A
Age
Reference Interval (mg/dL)
0-2 years
2-126
3-4 years
14-212
5-9 years
52-226
10-14 years
42-345
15-18 years
60-349
19 years and older
68-408
Tissue Transglutaminase (tTG) Ab, IgA
0-3 U/mL
Interpretive Data
Background information for test. May include disease information, patient result explanation, recommendations, details of testing, associated diseases, explanation of possible patient results.
Refer to report.
Component
Interpretive Data
Tissue Transglutaminase Antibody, IgA
3 U/mL or less: Negative 4-10 U/mL: Weak Positive 11 U/mL or greater: Positive
Compliance Category
FDA
Note
Additional information related to the test.
This is not a reflex test. Test 2008114, Celiac Disease Reflexive Cascade is the preferred reflex screening test for Celiac Disease.
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
Other names that describe the test. Synonyms.
Celiac Antibodies, Tissue Transglutaminase (tTG), IgA and IgA, Total