Interferon-Alpha by ELISA, Serum Iodine, Urine Interleukin 1 beta Ipecac Use Markers, Serum or Plasma – Screen with Reflex to Confirmation/Quantitation Insulin Antibody Interleukin 10 Ipecac Use Markers, Urine – Screen with Reflex to Confirmation/Quantitation Insulin, 120 Minutes Interleukin 12 Iron and Iron Binding Capacity Isopropanol (Includes Acetone) Isotretinoin Quantitative, Serum or Plasma Itraconazole, Quantitative by LC-MS/MS