I
iodine
I & D
incision and drainage
I & O
intake and output
IA
intra-arterial
ICCU
intensive coronary care unit
ICF
intracellular fluid
ICP
intracranial pressure
ICS
intercostal space
ICU
intensive care unit
ID
infectious disease / identification / intradermal
IFN
interferon
Ig
immunoglobulin
IgA
immunoglobulin A
IgE
immunoglobulin E
IgG
immunoglobulin G
IgM
immunoglobulin M
IGT
impaired glucose tolerance
IM or I/M
intramuscular / internal medicine
IMI
intramuscular injection
in.
inch
inc.
increased / incomplete
Inf.
infusion / inferior / infection
inj.
injection
insp.
inspiration