| INSFTM | Insulin, Free and Total, Serum Mayo Clinic Laboratories in Rochester | 
      
        | IL1B | Interleukin-1 Beta, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | SIL2R | Interleukin-2 Receptor Alpha Soluble, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | IL6 | Interleukin-6 (IL-6),  LAB332 Pathology Laboratory Des Moines, IA | 
      
        | IFBAM | Intrinsic Factor Blocking Antibody, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SFEC | Iron and Total Iron-Binding Capacity, Serum Mayo Clinic Laboratories in Rochester | 
      
        | IRONP | Iron Deficiency Panel, LAB2566 St. Luke's Hospital Cedar Rapids | 
      
        | FE | Iron, LAB94 St. Luke's Hospital Cedar Rapids | 
      
        | IRON | Iron, Serum Mayo Clinic Laboratories in Rochester | 
      
        | ITRMM | Itraconazole, Serum Mayo Clinic Laboratories in Rochester | 
      
        | SCCTIP | IV Catheter Culture, LAB224 St. Luke's Hospital Cedar Rapids |