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Medicine
Medical, healthcare and clinical acronyms explained.
OMU
osteomeatal unit
ONB
occipital nerve block
ONH
optic nerve head
ONLS
Overall Neuropathy Limitation Scale
OOM-SC
orbicularis oculi muscle stem cell
OP
open prostatectomy
OPC
outer pillar cell
OPC
oropharyngeal cancer
OPLL
ossification of the posterior longitudinal ligament
OPP
ocular perfusion pressure
OPTN
Organ Procurement and Transplantation Network
OPUS
Oral Passage Understanding Scale
OR
operating room
OR
odds ratio
OR
osmotic release
ORF
open reading frame
ORIF
open reduction internal fixation
ORR
objective response rate
ORS
oral rehydration solution
OS
left eye (oculus sinister)
OS
overall survival
OS12
overall survival at 12 months
OSA
obstructive sleep apnea
OSAS
Obstructive Sleep Apnea Syndrome
OSC
Operative Status Criteria
OSCC
oropharyngeal squamous cell carcinoma
OSD
ocular surface disease
OSH
outside hospital
OSM
oral small molecule
OSR
Open Surgical Repair
OT
occupational therapy
OTC
over-the-counter
OTO
Outer to Outer
OTSC
over-the-scope clip
OTW
over-the-wire
OU
both eyes (oculus uterque)
OUD
opioid use disorder
OV
office visit
OVB
oral viscous budesonide
OW
overweight