Lab Test Directory—Saint Luke's Regional Laboratories
| INSULIN | Insulin, Serum |
| IGF1 | Insulin-Like Growth Factor 1 |
| REF MISC | Integrated Genetics Cell Storage |
| INT SCRN 1, INT SCRN 2 | Integrated Screen™, Serum |
| REF MISC | Interferon Beta Neutralizing Antibody - Test NOT available |
| REF MISC | Interleukin 28B (IL28B) Genotype |
| REF MISC | Interleukin 5 |
| IL6 | Interleukin 6 |
| IFBAB | Intrinsic Factor Blocking Antibody |
| IODINE | Iodine |