Tissue Transglutaminase (TTG)
- Description
- IgA anti-TTG autoantibodies is a highly specific and sensitive antibody test in the diagnosis of coeliac disease. The antibody becomes negative a few months after starting gluten free diet. It can also be used to monitor compliance with a gluten free diet. In IgA deficient patients IgG endomysial is tested for. IgG TTG is at present not available.
- Related condition
- Reference range
<7.
- Units
- IU/ml.
- Testing site
- Synnovis : Reference Services : Blackfriars Hub
- Laboratory
- Diagnostic Immunology
- Sample type and volume required
- Clotted (Gold top vacutainer)
- Call in advance
- If urgent.
- Special sample instructions
All tests are compromised by prolonged transit times. For this reason, date of bleed and date of postage must be provided with each request.
- Storage and transport
- Serum stored at 4°C should be sent by first class post.
- Turnaround time
- 6 Days.
- Time limit for extra tests
- 10 Days.