| IU | International Unit |
|---|---|
| IU | Intrauterine |
| IU | infectious unit |
| IUATLD | International Union Against Tuberculosis and Lung Disease |
| IUCD | Intra Uterine Contraceptive Device |
| IUD | Intrauterine device |
| IUD | Intrauterine Contraceptive Device |
| IUF | isolated ultrafiltration |
| IUFD | Intrauterine fetal death |
| IUGR | Intra Uterine Growth Retardation |