Test Directory
Anti-tissue transglutaminase IgA and IgG (anti-tTG)
Containers - Adult
Brown Cap, Gel Clotted
|
Additive per Container
None |
Containers - Child
White Cap
|
Volume Range
0.4
Additive per Container
None |
Orange Cap - Paediatric
|
Volume Range
0.07
Additive per Container
Lithium-heparin |
Reference ranges
anti-tTG IgA 0.1 - 5.0 U/mL, anti-tTG IgG 0.1 - 10.0 U/mL
Laboratory Site
WGH
Crewe Road South
Edinburgh
EH4 2XU
Edinburgh
EH4 2XU
Telephone (Biochemistry): 0131 537 1910/1
Anticipated turnaround
7 days
General additional information
Anti-tTG testing -tTG testing is indicated for the investigation of coeliac disease. Note, a positive test depends on the interaction between dietary gluten and the small intestinal mucosa. Thus, if gluten is withdrawn from the diet prior to testing, the test becomes unreliable as a diagnostic tool. Please see RefHelp pages for further information.
Anti-tTG IgA first line test. Patients with IgA deficiency require anti-tTG IgG.