| IRI | immunoreactive insulin; insulin resistance index |
|---|---|
| IRS | immunoreactive secretion; infrared spectrophotometry; insulin receptor species; insulin receptor sub... |
| IST | inappropriate sinus tachycardia; insulin sensitivity test; insulin shock therapy; International Soci... |
| CSII | Continuous Subcutaneous Insulin Infusion |
| CZI | Crystalline Zinc Insulin |