Casandra
Casandra Test Code LC92462Version 1 (DRAFT)
Performing Lab
Celiac Antibodies tTG IgA, DGP IgA, Total IgA With Reflex to tTG IgG and DGP IgG
Also known as: Gliadin, IgA, Tissue Transglutaminase (tTG)
Clinical Use
Order TestUse
Aid in the diagnosis of gluten-sensitive enteropathies
Special Instructions
Not provided.
Limitations
The sensitivity and specificity of serologic markers can vary based on the stage of disease and the patient's protein intake. False negatives may occur in individuals with IgA deficiency. Confirmatory tests or follow-up tests may be required if initial results do not align with clinical symptoms.
Test Details
Methodology
Immunoassay (Enzyme immunoassay (EIA))
Biomarkers
Deamidated Gliadin Abs, IgA
ProteinDGP IgA
Other • Binary (Detected / Not Detected)
Immunoglobulin A, Qn, Serum
ProteinTotal IgA
Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
t-Transglutaminase (tTG) IgA
ProteintTG IgA
Other • Binary (Detected / Not Detected)
LOINC Codes
Order Codes
- 94493-4 - Celiac IgA + HLA + Sero Bld/T
Result Codes
- 31017-7 - tTG IgA Ser-aCnc
- 58709-7 - Gliadin peptide IgA Ser-aCnc
- 2458-8 - IgA SerPl-mCnc
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
3 mL
Minimum Volume
1 mL
Container
Red-top tube or gel-barrier tube
Storage Instructions
Room temperature
Causes for Rejection
Hemolysis; lipemia; gross bacterial contamination
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |
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