| IHT | insulin hypoglycemia test; intravenous histamine test; ipsilateral head turning |
|---|---|
| INB | internuclear bridging; ischemic necrosis of bone |
| IPN | infantile polyarteritis nodosa; infectious pancreatic necrosis [of trout]; intern progress note; int... |
| LHD | lateral head displacement [sperm] |
| LN | Lesch-Nyhan [syndrome]; lipoid nephrosis; Lisch nodule; low necrosis; lupus nephritis; lymph node |