| ECSLT | E coli Shiga-like Toxin by EIA | — |
| RAPANEL | Early and Established Rheumatoid Arthritis (RA) Panel | — |
| ESSP | Early Sjogren's Syndrome Profile | — |
| EEEP | Eastern Equine Encephalitis Ab, IgG & IgM | — |
| ECNA | Echinococcus Antibody, IgG | — |
| ECHO | Echovirus Antibodies | — |
| ECUMP | Eculizumab Monitoring Panel, Serum | — |
| ECULI | Eculizumab, Serum | — |
| EFXR | Effexor (Venlafaxine) | — |
| EGGCOM | Egg Components IgE | — |
| EGGWHT | Egg White, IgE | — |
| EGGWHL | Egg Whole IgE | — |
| EGGYLK | Egg Yolk IgE | — |
| EDSGG | Ehlers-Danlos Syndrome Gene Panel, Varies | — |
| EPDP | Ehrlichia and Anaplasma by PCR | — |
| EHAB | Ehrlichia chaffeensis Antibodies, IgG & IgM | — |
| EOPF | Electrolyte & Osmolality Prof, Fecal | — |
| LYTS | Electrolytes | Please see individual components for methodology |
| ELAIR | Elution & Antibody Identification, RBC | — |
| ENCES | Encephalopathy, Autoimmune Evaluation, Serum | — |
| EMAAL | Endomysial Antibody, IgA | — |
| EMGA | Endomysial Antibody, IgG | — |
| EBAAG | Entamoeba histolytica Antibody, IgG | — |
| EMAG | Entamoeba Histolytica Antigen, Stool | — |
| EVPCR | Enterovirus by PCR | — |
| EOCP | Eosinophil Cationic Protein | — |
| CYEOS | Eosinophils Sputum/Urine, Cytology | — |
| EBA | Epstein Barr Virus (EBV) Ab to Early D Antigen, IgG | — |
| EBNA | Epstein Barr Virus (EBV) Ab to Nuclear Antigen, IgG | — |
| EBVCG | Epstein Barr Virus (EBV) Ab to Viral Capsid Ag, IgG | — |
| EBCM | Epstein Barr Virus (EBV) Ab to Viral Capsid Ag, IgM | — |
| EBVA | Epstein Barr Virus (EBV) Antibodies Panel | — |
| EBVQ | Epstein Barr Virus (EBV) DNA Quantitative, Blood | — |
| EBVDO | Epstein Barr Virus (EBV) DNA Quantitative, Other | — |
| EPWB | Erythrocyte Porphyrin, (EP), Whole Blood | — |
| EPOES | Erythropoietin | — |
| E2 | Estradiol | Electrochemiluminescence Immunoassay |
| E3 | Estriol | — |
| ESTS | Estrogens, Total & Fractionated | — |
| ESTR | Estrone (E1) | — |
| ETHAM | Ethambutol Quantitative, Serum or Plasma | — |
| ESUX | Ethosuximide (Zarontin) | — |
| CDETHG | Ethyl Glucuronide/Sulfate, Urn Quant | — |
| ETGL | Ethylene Glycol, Serum | — |
| ELYS | Euglobulin Lysis Time | — |
| EVMS | Everolimus (Afinitor/Zortress) | — |
| MYOSEXT1 | Extended Myositis Panel | — |
| ENABR | Extractable Nuclear Antigen Abs (RNP/Smith/SSA/SSB) | — |
| EYECU | Eye Culture | — |
