| EOIBD | Early Onset Monogenic Inflammatory Bowel Disease (IBD) Gene Panel, Varies Mayo Clinic Laboratories in Rochester | 
      
        | ECMP | Eculizumab Monitoring Panel, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EGGWH | Egg White, IgE, Serum, LAB588 St. Luke's Hospital Cedar Rapids | 
      
        | YOLK | Egg Yolk, IgE, Serum, LAB589 St. Luke's Hospital Cedar Rapids | 
      
        | EGGPM | Eggplant, IgE, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EHRPM | Ehrlichia Antibody Panel, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EHRCGM | Ehrlichia chaffeensis (HME) Antibody, IgG, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EFPOM | Electrolyte and Osmolality Panel, Feces Mayo Clinic Laboratories in Rochester | 
      
        | LYTES | Electrolyte Panel, LAB16 St. Luke's Hospital Cedar Rapids | 
      
        | UPEP24 | Electrophoresis, Protein, 24 HR, U, LAB5287 St. Luke's Hospital Cedar Rapids | 
      
        | UPEPRA | Electrophoresis, Protein, Random, U, LAB 5314 St. Luke's Hospital Cedar Rapids | 
      
        | ELM | Elm Tree, IgE, Serum, LAB2423 St. Luke's Hospital Cedar Rapids | 
      
        | ENS2M | Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Serum Mayo Clinic Laboratories in Rochester | 
      
        | ENC2M | Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid Mayo Clinic Laboratories in Rochester | 
      
        | MPS1R | Endogenous Mucopolysaccharidosis Type I (IDUA [Alpha-L-Iduronidase]) Biomarker Reflex, Blood Spot Mayo Clinic Laboratories in Rochester | 
      
        | MPS1B | Endogenous Mucopolysaccharidosis Type I (IDUA [Alpha-L-Iduronidase]) Biomarker, Blood Spot Mayo Clinic Laboratories in Rochester | 
      
        | MPS2R | Endogenous Mucopolysaccharidosis Type II (I2S [Iduronate-2-Sulfatase]) Biomarker Reflex, Blood Spot Mayo Clinic Laboratories in Rochester | 
      
        | MPS2B | Endogenous Mucopolysaccharidosis Type II (I2S [Iduronate-2-Sulfatase]) Biomarker, Blood Spot Mayo Clinic Laboratories in Rochester | 
      
        | ENDABM | Endomysial Antibodies, IgA, Serum Mayo Clinic Laboratories in Rochester | 
      
        | EPLANT | English Plantain, IgE, Serum,  LAB639 St. Luke's Hospital Cedar Rapids | 
      
        | EHISTM | Entamoeba histolytica Antibody, Serum Mayo Clinic Laboratories in Rochester | 
      
        | STLM | Enteric Pathogens Culture, Feces Mayo Clinic Laboratories in Rochester | 
      
        | EVPCRM | Enterovirus, Molecular Detection, PCR, Plasma Mayo Clinic Laboratories in Rochester | 
      
        | EOSCNT | Eosinophil Count (Absolute), Blood, LAB298 St. Luke's Hospital Cedar Rapids | 
      
        | UREOS | Eosinophil Smear, Random, Urine, LAB2135 St. Luke's Hospital Cedar Rapids |