Test Catalog

Test ID: IETG    
Interference Evaluation Heterophile, Thyroglobulin Tumor Marker, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful


The specimen will be evaluated for potential heterophile antibody interference in the Beckman Access Thyroglobulin (Tg) Immunoassay.


In the absence of anti-thyroglobulin antibodies, the presence of heterophile interference is not suspected when the Tg concentration in the alternate platform evaluation, dilutions, and heterophile blocking tube pretreatment are substantially altered.

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
TGIITG, Interference InterpretationNoYes
TGQNThyroglobulin, Tumor Marker, SYes, (Order HTG2)Yes
TGABIThyroglobulin Antibody, SYes, (Order HTG2)Yes
TGMSThyroglobulin, Mass Spec., SYesYes

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Heterophile antibody evaluation consists of comparison of thyroglobulin (Tg) concentrations obtained by immunoassay with the following:

-Tg concentrations following pretreatment with commercial heterophile blocking reagents

-Tg concentrations obtained by mass spectrometry

-Tg concentrations obtained by serial dilutions of the sample

In all samples the presence of anti-thyroglobulin antibodies are evaluated.

Method Name A short description of the method used to perform the test

TGQN/TGABI: Immunoenzymatic Assay

TGMS: Tryptic Protein Fragmentation, purified with Immunocapture, Analysis by Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

(This service is performed pursuant to an agreement with SISCAPA Assay Technologies Inc. covering US Patent 7,632,686)

TGII: Medical Interpretation

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Interference Eval, Heterophile, TG

Aliases Lists additional common names for a test, as an aid in searching

TG Heterophile
TG (Thyroglobulin)
Thyroglobulin Assay for Thyroid Cancer