| IVT | Intra-Venous Transfusion |
|---|---|
| IVT | index of vertical transmission; interventional video tomography; intrasound vibration test; intravenous transfusion; intraventricular; in vitro tetraploidy; isovolumetric time |
| IVTT | in vitro transcription and translation |
| IVTTT | intravenous tolbutamide tolerance test |