| IHT | insulin hypoglycemia test; intravenous histamine test; ipsilateral head turning |
|---|---|
| IV | ichthyosis vulgaris; initial visit; interventricular; intervertebral; intravaginal; intravascular; i... |
| iv | intravascular; intravenous |
| IVCH | intravenous cholangiography |
| IVDSA | intravenous digital subtraction angiography |