| EBR |
External beam radiation |
| EBT |
External beam therapy |
| EBV |
Epstein-Barr virus |
| ECCE |
Extracapsular cataract extraction |
| ECG, EKG |
Electrocardiogram; electrocardiography |
| ECHO |
Echocardiogram; echocardiography; echoencephalogram; echoencephalography |
| ECRB |
Extensor carpi radialis brevis (muscle or tendon) |
| ED |
Erectile dysfunction; emergency department |
| EEG |
Electroencephalography |
| EENT |
Eyes, ears, nose, throat |
| EF |
Ejection fraction |
| EGD |
Esophagogastroduodenoscopy |
| ELT |
Endovenous laser ablation; endolumina laser ablation |
| Em |
Emmetropia |
| EMG |
Electromyography |
| ENT |
Ears, nose, and throat |
| EOM |
Extraocular movement eos eosinophil (type of white blood cell) |
| ERCP |
Endoscopic retrograde cholangiopancreatography |
| ESR |
Erythrocyte sedimentation rate |
| ESRD |
End-stage renal disease |
| ESWL |
Extracorporeal shock-wave lithotripsy |
| ETT |
Exercise tolerance test |
| ETT-MIBI |
Exercise tolerance test combined with a radioactive tracer (sestamibi) scan |
| EU |
Excretory urography |
