| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |
|---|---|
| TBNA | total body neutron activation; treated but not admitted |
| TBNAA | total body neutron activation analysis |
| UAS | upper abdomen surgery; upstream activation site |
| VAT | variable antigen type; ventricular accommodation test; ventricular activation time; vesicular amine ... |