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HelpTest Code LAB721 Tissue Transglutaminase Antibody IgG
Clinical System Name
Tissue Transglutaminase Antibody IgG
Synonyms
TTG
TTG IgG
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST Microtainer, Red
Preferred Vol: 1 mL
Minimum Vol: 0.5 mL
Note:
Processing Instructions
Reject due to: Visible hemolysis
Spin: Y
Aliquot: Y
Temp: 2-8 C
Storage location: Transfer serum to plastic aliquot container affixed with larger Epic label. Refrigerate in CPA FrigF rack.
Off-site collection: Spin blood, transfer serum to plastic aliquot container. Refrigerate specimen.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| serum | Room temp | |
| Refrigerated | 7 d | |
| Frozen | 8 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M-F | 1-3 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem East
Phone Number: (206) 987-3694
CPT Codes
86364
Methodology
Method: Immunoassay on Bioplex 2200
Analytical Volume: 100 mcL serum
Limitations: Visible hemolysis causes a false decrease in measured tTG.
Reference Range
| Units/mL | |
|---|---|
| Negative | < 15 |
| Positive | > 15 |