CELIAC SCREEN WITHOUT DGP

Specimen Required
Draw blood in a SST. Centrifuge, separate serum from cells, and send 2.0 mL serum (1.0 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Grossly hemolyzed or lipemic specimens

Methodology
Enzyem Immunoassay, Nephelometry

Stability
Room temperature: 8 hours; Refrigerated: 2 days; Frozen: 14 days

Reference Range
Tissue Transglutaminase Antibody, IgA:
<20 Units Negative
20-30 Units Weak Positive
>30 Units Moderate to Strong Positive
Immunoglobulin A (IgA):
0-30 days 1-7 mg/dL
1 month 1-53 mg/dL
2 months 3-47 mg/dL
3 months 5-46 mg/dL
4 months 4-72 mg/dL
5 months 8-83 mg/dL
6 months 8-67 mg/dL
7-8 months 11-89 mg/dL
9-11 months 16-83 mg/dL
1 year 14-105 mg/dL
2 years 14-122 mg/dL
3 years 22-157 mg/dL
4 years 25-152 mg/dL
5-7 years 33-200 mg/dL
8-9 years 45-234 mg/dL
>=10 years 70-400 mg/dL

Performed
Monday-Friday

Turnaround Time3 days
Test CodeCELPS
CPT-4 Code (s)
83516, 82784
LOINC Codes
Tissue Transglutaminase IgA   31017-7  
Immunoglobulin A IgA   2458-8  

Warde
Medical
Laboratory