| GITT | gastrointestinal transit time; glucose insulin tolerance test |
|---|---|
| HAT | Halsted Aphasia Test; head, arm, trunk; heparin-associated thrombocytopenia; heterophil antibody tit... |
| ICT | icteric, icterus; indirect Coombs test; inflammation of connective tissue; insulin coma therapy; int... |
| IDT | immune diffusion test; instillation delivery time; intradermal typhoid [vaccine] |
| IVT | index of vertical transmission; interventional video tomography; intrasound vibration test; intraven... |