E
electrolytes / engaged (pregnancy)
e.
ex (without)
ECG
electrocardiogram
ED
effective dose / emergency department / eating and drinking
EENT
ears eyes nose throat
EMG
electromyogram
EMS
emergency medical service
EHR
electronic health record
E/O
excision of
ER
emergency room
ETT
endotracheal tube
EUA
examination under anaesthesia
Ex
excision
ex aq
ex aqua (with water)
ex lac
ex lactis (with milk)
exp
expire(s)
ext
external
EAR
expired air resuscitation
Echo.
echocardiogram
ECP
emergency contraceptive pill
EDD
expected due date
EEN
endorsed enrolled nurse
EFR
estimate fluid requirements
EGD
esophagogastroduodenoscopy