Interleukin 4 Isohemagglutinin Titer, IgM Insulin, Other Interleukin 5 Insulin, Random Interleukin 6 Insulin, Veterinary Interleukin 8 Insulin-Like Growth Factor 2 Intrinsic Factor Blocking Antibody Interferon Beta Neutralizing Antibody with Reflex to Titer Iodide Quantitative, Serum or Plasma Interferon gamma Iodine, Serum 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