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HelpEpic Test Code LAB3184 Tissue Transglutaminase IgA
Methodolgy
Fluorescence Enzyme Immunoassay (FEIA)
Specimen Required
Preferred: Serum Gel Acceptable: Red Top
Specimen Stability
Refrigerated
Specimen Type
Serum
Report Available
1-4 Days
Day(s) Performed
Mon-Thurs.
CPT Codes
86364
Reject Due To
Lipemic, hemolyzed or microbially contaminated samples may give poor results and should not be used. Undiluted samples at room temp > 8 hours.
Specimen Retention
Room Temp: 8 hours undiluted; Refrigerated: 14 days undiluted
Reference Values
<7 Negative 7-10 Equivocal >10 PositiveLimitations
A definitive clinical diagnosis should not be based on the results of a single diagnostic method but should only be made by the physician after all clinical and laboratory findings have been evaluated. The use of plasma preparations with heparin is not recommended because heparin interferes with the measurement of tTG antibodies.