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NF
nursing facility
NG, ng
nasogastric
NIBP
non-invasive blood pressure monitoring
NKA
no known allergies
NKDA
no known drug allergies
no
number
noc
night
NPO
nothing by mouth
NVD
nausea, vomiting, and diarrhea
NWB
non-weight-bearing
O2
oxygen
O&P
ova and parasites
OB
obstetrics
ob/gyn
obstetrics and gynecology
OBRA
Omnibus Budget Reconciliation Act
occ
occasionally
OCD
obsessive-compulsive disorder
OD
overdose
O.D.
right eye
OG
orogastric
OOB
out of bed
OPD
outpatient department
O.R.
operating room
ord.
orderly, ordered
ORIF
open reduction, internal fixation