GT
Gastrostomy tube
NGT
Nasogastric tune
HHN
Hand Held nebulizer
MDI
Meter dose inhaler
p.o
Oral, by mouth
pr
Rectum
ID
Intradermal
IM
Intramuscular
IV
Intravenous
IVPB
Intravenous piggyback
IVP
Intravenous push
SL
Sublingual
Sub Q
Subcutaneous
S & S
Swish and Swallow