List of Medical Abbreviations: E

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Abbreviation Meaning
E ecstasy
EAC external acoustic meatus
EACA epsilon-aminocaproic acid
EAEC enteroadhesive Escherichia coli
EAF enteric adherence factor
EAM external auditory meatus
EBL estimated blood loss (see bleeding)
EBM evidence-based medicine
expressed breast milk
EBT electron beam tomography
EBV Epstein–Barr virus
EC enteric coating
ECC endocervical curettage
ECD endocardial cushion defect
ECF extracellular fluid
enteric cytopathic human orphan
ECG electrocardiogram
ECM extracellular matrix
ECHO enteric cytopathic human orphan virus
ECI febris e causa ignota (normally written as febris E.C.I.)
fever of unknown origin
ECLS extracorporeal life support
ECMO extracorporeal membrane oxygenation
ECP emergency care practitioner
ECT electroconvulsive therapy
ED emergency department
erectile dysfunction
ectodermal dysplasia
EDC estimated date of confinement (at 40/40 weeks of pregnancy)
EDD estimated date of delivery (at 40/40 weeks of pregnancy); expected date of delivery
estimated date of discharge
EDF end diastolic flow (describing the flow of blood through the umbilical artery)
EDH epidural hematoma
EDM esophageal Doppler monitor
EDRF endothelium-derived relaxing factor aka nitric oxide


EDTA ethylene-diamine-tetraacetic acid
EDV end-diastolic volume
EEE eastern equine encephalitis
EEG electroencephalogram
EENT ears, eyes, nose, throat (see otolaryngology)
EEX electrodiagnosis
EF ejection fraction
EFM electronic fetal monitoring, aka external fetal monitoring (cardiotocograph)
EFW estimated fetal weight
EGBUS external genitalia, Bartholin's glands, urethra & Skene's glands
EGD esophagogastroduodenoscopy
EGF epidermal growth factor
EHEC enterohemorrhagic Escherichia coli
EIEC enteroinvasive Escherichia coli
EIA external iliac artery External iliac artery
EJ elbow jerk (triceps reflex)
EKG electrocardiogram
ELLSCS elective lower segment caesarean section
ELISA enzyme-linked immunosorbent assay
EM erythema multiforme
EMB ethambutol
endometrial biopsy or endomyocardial biopsy
EmBx endometrial biopsy
EMC encephalomyocarditis
EMD early morning discovery
electromechanical dissociation
EMF endomyocardial fibrosis
EMG electromyography
EMLSCS emergency lower segment Caesarean section
EMU early morning urine sample (being the most concentrated, generally used for pregnancy testing)
Emul emulsion
ENT ear, nose, and throat (see otolaryngology)
EOM extraocular muscles
EOMI extraocular movements intact (see eye movement)
EPCT estrogen-progesterone challenge test
EPEC enteropathogenic Escherichia coli
EPH edema, proteinuria, hypertension
EPO erythropoietin
EPS electrophysiology
extrapyramidal syndromes
ER emergency room
ERCP endoscopic retrograde cholangiopancreatography
ERM epiretinal membrane
ESHAP etoposide, cisplatin, cytarabine, methylprednisolone (chemotherapy regimen for relapsed Non-Hodgkin lymphoma)
ESL extracorporeal shockwave lithotripsy (also ESWL) (see lithotriptor);
English as a second language (affects provider–patient communication)
ESBL extended spectrum beta-lactamase (see also gram-negative bacteria)
ESR erythrocyte sedimentation rate
ESRD end-stage renal disease
ESS empty sella syndrome
ESV end-systolic volume
ESWL extracorporeal shockwave lithotripsy (also ESL) (see lithotriptor)
ET endothelin
ETEC enterotoxigenic Escherichia coli
Etiol etiology
ETOH ethanol (ethyl alcohol)
ETS endoscopic thoracic sympathectomy
ETT endotracheal tube
EUA examination under anesthesia
EUP extrauterine pregnancy
EUS endoscopic ultrasonography
EVAR endovascular aneurysm repair
EVF erythrocyte volume fraction (see hematocrit)
Exam examination (for example, physical examination)
Exp Lap exploratory laparotomy
Ext extremities
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