CELIAC SCREENING PROFILE, IGA WITH REFLEX TO IGG, SERUM

Message

This profile begins by checking the patient's IgA level. If the IgA level is sufficient, tissue transglutaminase (TTG) and deamidated gliadin
peptide (DGP) IgA antibodies will be reported. If the IgA level is insufficient, TTG and DGP IgG antibodies will be reported

Test Code

LAB1239902

CPT Codes
83516

Preferred Specimen

Gold Top Tube
Pediatric: 2 Gold top microtainers

Other Acceptable Specimens

Red Top Tube

Instructions

Centrifuge within 1 hour of collection. Separate serum from cells if Red Top Tube. Aliquot 0.5 mL serum. Required for testing: 0.5 mL

Transport Temperature

Refrigerated

Specimen Stability

Refrigerated: 2-8°C 7 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Failure to fully fill tube,hemolyzed specimens

Methodology
Multiplex Immunoassay performed on BioPlex 2200

Setup Schedule

Monday, Wednesday and Friday Dayshift

Reference Range

Anti-tTG IgA and Anti-DGP IgA: < 15 U/mL Negative
Anti-tTG IgA and Anti-DGP IgA: ≥ 15 U/mL Positive
Anti-tTG IgG and Anti-DGP IgG: <15 U/mL Negative
Anti-tTG IgG and Anti-DGP IgG: ≥ 15 U/mL Positive

Performing Laboratory
West Virginia University Hospital, Inc.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.